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Built some Variable ND 3D-printed sunglasses
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- Опубликовано: 15 авг 2024
- Ever since getting into video production, I've wanted to make these variable ND sunglasses. Thanks to awesome sponsors like PCBWay, we are able to print these in metal, which was so much fun! Check them out here : 👉 pcbway.com/g/9... 👈
They offers comprehensive manufacturing services including PCB production & assembly, machining, sheet metal fabrication, injection molding, and 3D printing.
Project Link : www.pcbway.com...
Mail : Info@Flatlanders.nl
Socials : linktr.ee/Just...
Filters
( PLEASE MAKE SURE TO ADD UV FILTERS )
This can be done by unscrewing the variable ND filters with a calliper or something similar, and adding some UV glass between the two, on these VND's I use in the video there's more than enough room to accommodate an extra layer, so nothing in the design has to change, pretty awesome! :)
Variable ND Filters
NL : amzn.to/4f1nMpX
US : amzn.to/3WiZ5Op
Timestamps:
00:00 - Introduction and Inspiration
00:17 - Discovery of ND Filters and Sunglasses Idea
00:30 - Sponsorship and Project Overview
00:48 - Explanation of Variable ND Filters
01:12 - Potential Applications and Design Challenges
01:32 - Size and Thread Measurement for ND Filters
01:52 - Polarizing Properties and Reflection Issues
02:14 - Hinge Design and Screw Selection
02:36 - Concerns about Durability and Printing Tips
02:51 - Trial and Error with Fit and Hinges
03:11 - Custom Fit and 3D Printing Benefits
03:29 - 3D Printing Durability Perception
03:45 - Bending PLA for Better Fit
04:14 - Amazon Links and Support
04:36 - Design Iterations and Filming Challenges
05:01 - Final Design with Cross Bridge Structure
05:27 - Assembly and Glare Issues
05:48 - Experimenting with Shields
06:07 - Resin Printing and Design Adjustments
06:25 - Transparent Filament Discovery
06:44 - TPU Filament Testing
07:08 - Metal Printing Service Overview
07:26 - Tool Steel Version and Quality Impressions
07:44 - Weight and Fit of Tool Steel Sunglasses
08:08 - Comparison with Aluminium Sunglasses
09:07 - Feedback from Different Groups
09:48 - Polarizing Properties Issue
10:30 - Drop Test Explanation
10:54 - Drop Test Results and Recommendations
UV PROTECTION FIX : Look for 400nm UV Filters
Thank you all for the support I really appreciate it and don't hesitate to reach out!
Some people pointed out that there might be potential risks due to the lack of UV protection in most variable ND filters. I really appreciate this feedback and wish I had caught that flaw before posting the video.
Since then, I have purchased some UV filters separately that I removed from the original metallic housing and clipped into the original filters on the inside, so the design remains the same without a visible difference. Just be sure that your filters have UV protection or that you add it by getting them separately. It's very important to me that if you decide to do a similar project, your eyes are properly protected!
Oh awesome! I was actually thinking of making something like this a month or two ago but I didn’t know where to get UV filters
@@Pentross uv filters are probably the easiest filter to find... 🤨
@@AngryApple huh. I must have been using the wrong search terms then, at the time I remember not finding any I would trust to be eye-rated
Its indeed quite difficult to find filters that are tested to the same standards as sunglasses, but there are companies that do I personally found some by searching for the UV blocking wavelength so in our case up to 400nm. I also plan to test mine just to be sure, until then ill just leave it as a note, I would not want to recommend something to people and then have it turn out to be inadequate.
I have a pair of old RONSOU sunglasses in the classic round-style with anti-glare wings and they attached and are hinged from the center of the top and bottom of the lens itself. If you search for 'Ronsou retro round sunglasses' they should show up.
In another universe they say "Sunglasses are like ND filters for your eyes" 🕶️
hahaha XD
best comment
You should add a belt between the lenses so they're synchronized.
I love your idea with the belt! it would also make it look even more strange and sci-fi, like a rubber string going all the way round through a roller above the nose haha, thank you for your comment!
@@FlatLanderTech or you could use a thin hidden string/belt to make it look even more magical
I think if you used a belt with a combination of gears, (So a gear next to the each lens, then a blelt to connect each gears, that way the belt can be just on the top part to avoid the nose.) That could work. I would also try to make the belt and gears as small as possible.
@@FlatLanderTecha thin timing belt would be ideal for this application, like ones found is some scanners or printers
Okay this is sick.
i think one with visible gears that move both lenses to the same position would be really sick. Also one where the lenses actually magnify.
hahah im glad you like it! i love your suggestion on the geared filters so they move at the same time! , magnification also sounds amazing, it would be like an all mechanical super goggle of some sort, awesome ideas, thanks for your comment!
@@FlatLanderTech That's exactly what i was going for. Since you can get them metal printed, you could make them steampunk
Thank you for the video. didn't know it was that easy to mold plastic with heat. (just... don't drink the water afterwards lol)
the lighting in some of these shots really adds a lot of depth and kind of a welcoming exciting atmosphere, nice job , i wish every channel with fdm stuff was so well done
Im glad you like the lighting, thank you! in this video it was kind of all other the place with style tho so usually I try to keep it somewhat in one line but this project was shelfed for a little bit haha.
A gear between the filters would be cool. So that when you turn one filter, it would spin the other in the exact same way.
This is extremely cool. Good job on this :). Man those clear PCBWay prints are really nice!
I never would have expected this video to land in your feed haha, I'm a big fan of your channel, amazing cinematography ! :)
I have photo sensitivity, and despite how expensive photochromic glasses are, they don't work inside with artificial lights or inside the car. And some clip-ons are just like having a second pair of glasses. o this really awakes interest on me. Wish one day I could have vintage frames, with this variable "polarization" feature. LOVED the color grading and the structure of the entire video. Hope you get a lot of more people interest on this project.
Thank you for sharing your experience! I understand the challenges you face with photosensitivity, especially when traditional solutions like photochromic glasses fall short in certain environments. You may also be interested in this company, called Ampere, they make these sunglasses that somehow switch to dark in a second, not sure how it works but here is the link to their page, ampere.shop/products/dusk-rx-premium-smart-glasses-with-electronic-tint-control?variant=40358674137222, I'm glad you enjoyed the color grading and the structure of the video thank you! :)
My father had eye issues which required he wore sunglasses with glare shields. Those sheilds are rigid and hinged separately from the legs so that they don't interfere and the glasses can fold shockingly flat. If you need pictures I can dig them up, I still have them somewhere.
Thank you for sharing this! I've never seen such a design before and id absolutely love to see how they work, if you find the time ( and really only if you have the time, I know how busy life can be sometimes ) id love to see them! My email is info@flatlanders.nl
@@FlatLanderTech No problem, just sent you the email. It wasn't as flat as I remember them folding, only down to ~1inch/25mm, but I haven't looked at them for a few years. Part of that thickness is the coke bottle glass lenses.
👌🏽👌🏽👌🏽
*Sci-fi AF,* love it!
I see the Backfire board in the back ⚡️👀⚡️
hahaha, you know, I sometimes watch Eboard videos, and I rarely see a video without you in the comment section XD glad you liked the video! :)
@@FlatLanderTech 😂 my tagline is "I am eBoard3R, and I am... EVerywhere 😂
Add a string bridge in between both the lenses so that if you adjust one other is adjusted as well and the lenses remained aligned so you dont have to adjust for each individual eye
A string bridge in the style of a bike chain would be absolutely awesome, like a mini bike chain, and the indeed it would adjust both eyes simultaneously which would be awesome, thank you for commenting! :)
Brilliant project, buy the way your filmmaking skills are topnotch Great work
thank you I'm glad you like the production quality! :)
Absolutely Phonomeonal video production. The thoroughness of the journey and the critique at the end make this a truly delightful video to watch. Fantastic find from a small channel. Keep it up!
I'm glad you enjoyed the video production quality ! i always love to improve upon it whenever i can :) thanks for the supportive comment! have a lovely day!
This is so cool! I had this exact same idea a couple of years ago (must be a Dutch thing haha), quit after my first iteration and never shared it. Your execution was significantly better than mine, well done!
haha the Dutch love their sunglasses because it rains all the time XD I've met a lot of people in the videography space who where also like, ooo yea i had that idea aswel, it surprises me there's not more videos about it. thank you for the support, I watched one of your videos a couple weeks ago as it popped in my feed, cool content!
@@FlatLanderTech Now you mention it, this is kind of surprising indeed. I designed the frame too light with very thin temples printed out of resin. The weight of the filters made it impossible for the glasses to stay on my face. Also the reflection from the back was terrible and your approach of the side flaps was a good one!
I was also thinking about trying different kinds of filters like star or colored filters. Maybe even use two different colors like those red and blue glasses just for fun. Would also look cool as a thumbnail I think. Maybe I need to revisit this one day. Cool that you've seen one of my videos, thank you man really appreciate it!
Very cool project super high quality ! Congrats ❤
Glad you enjoyed the project and the quality thank you!!!
Love the presentation. You have a new subscriber!
This is really cool. It's got me thinking about where this could go. I like the other comment mentioning exposed gears. Could take that farther with a linkage:
Right now most of the angular range has very little change in apparent brightness per degree. Some kind of mechanism that produces fast output for the start of the range and slow output for the end of the range would make the apparent brightness smoother, and give the wearer finer control. Ideally you'd have a mechanical logarithm but that sounds hard!
There's the obvious comparison to photochromic glasses, which slowly darken in sunlight and return to clear out of sunlight. A tiny servo (perhaps a CD drive stepper?) plus a light sensor could replicate this behavior with better dynamic range and much faster response.
Alternatively, the whole variable ND filter could be replaced with a liquid crystal light valve, like those found in welding helmets, for practically instant response. Still have polarization effects, though.
Maybe it's about time I pick up some linear polarizer film and give it a go...
Thank you for the support! your ideas all sound amazing, I'm also incredibly curious about the welding glasses, id love to take one apart and see if that could be something for a future version! Let me know if you make your own id love to see what you come up with ;)
10:39 my hypothesis is that the offset effect comes from the air gap between the two polarized lenses.
Unlike regular sunglasses which I think have the polarization layers directly on top of one another, there may be a gap of a millimeter or so between the polarizers in the ND filter so they don't grind against each other. Maybe if you had an oil or liquid between the polarizers, with a similar refractive index as the polarizers, you might get a more consistent look, especially at offset angles. I don't really know what I'm talking about though, just a hunch, might be misunderstanding the problem entirely.
That's a very interesting hypothesis! I hadn't considered the distance between the two, thank you for sharing! it could definitely be due to this because, when I remove the top ones it doesn't seem to happen.
The weird visual effect could be because the left and right variable NDs aren't perfectly aligned to each other. Let's say we think of them as two sets of clocks, with the hour hand being the "base" polarizer and the minute hand being the one that's rotated. In order to not have weird vision artifacts, the left and right hour and minute hands both have to be synchronized.
I indeed also thing its because of this misalignment, i saw another comment explaining it could be because even in the factory it cant be done perfectly
What a great video, every aspect of its well crafted. Even the music it’s spot on. Can’t wait what you’ll shared next!
I'm glad you liked it! thank you for your supportive message :)
Ooh what a cool idea and execution, great video!
Thank you glad you enjoyed !
Very cool project, glad I found your channel! I believe that polarized sunglasses work to remove reflections is due to the polarization of the light. Reflections are normally horizontally polarized, so by having the lenses of polarized sunglasses vertically polarized, reflections are absorbed by the lens. I think that the way these variable ND filters work, which is explained quite well in the minutephysics video on Bell's Theorem, may have to do with the weird reflections when you tilt your head. I know very little about optics though, and may be completely wrong.
Thank you for taking the time to explain this! i love how reading these comments results in so much new knowledge, ill definitely watch the video you mention and I'm glad you enjoyed!
This is really entertaining and informative while being creative with the concept. Excellent video and design
Really glad you enjoyed it! Thank you :)
Very cool! I made a pair of goggles like this once with a servo motor, but it was all done with hand tools in my kitchen, and I was just using raw polarizing sheet. The final result was pretty ugly and never worked very well. Yours is so elegant!
That sounds so awesome! using polarizing sheets with servo motors is very smart thank you for sharing! glad you enjoyed!
Excited to watch this in full. If you want an even harder project, adjustable focus liquid lens glasses is something Joshua Silver has played around with, but I've yet to see it in 3d printed form.
Woww! thank you so much for this comment, I just watched a short video about Joshua Silvers glasses that's so cool! amazing inspiration right there haha
I think there is a difference between each eye because the lenses are creating diamond shapes when semi-transparent and the diamonds are not in the same alignment from left to right eyes, probably the stationary filters in each eye need to be aligned with one another. I would imagine you could do this with a sheet of polarizing film and checking the alignment of each lens upon installation.
I LOVE THIS PROJECT!!👏🏾🤩
haha im glad you enjoyed it! :)
You’re on. I’ll design some. I’ve been meaning to print with a .2mm nozzle and this is the perfect excuse
Awesome!! haha cant wait, I'm really looking forward to seeing what everyone comes up with :)
@@FlatLanderTech I printed yours today in ABS then I gave them a bath of acetone fumes and smoothed them really well. I also printed on a carbon fiber textured plate and they look really good! Nice job man!
@@FlatLanderTech I’m donnnnee… should I make a video on it for ya?
This is very sick, what would make it better will be that if it automatically adjusts. Could be done with a small motor linear or circular rail, light sensor and micro processor
That sounds awesome! definitely considering doing an updated version with some Tech :) glad you liked the project!
I recently thought about adding CPL filters to glasses, that way you can cut out glare from reflective surfaces while outside
That's indeed a very useful application!
The variable ND filter may be the issue with the glasses' clarity, as you can never have the same exact rotation angle on both. I would experiment with basic ND filters. Yes, they would remove a significant portion of the concept, but at least you'd still retain the cool and modular design!
Anyway, love the project! As an Industrial Designer, I rarely care about accessories and fashion, but this scratches my gadgets/DIY itch very nicely!
I'm really glad you enjoyed the project!! thanks you for the support. I'm going to attempt some more alignment sessions, see if its not fixable somehow, I also notice on my camera ND filters the polarizing properties are a lot less so perhaps its also due to the filters I chose.
What a great video! Really cool concept!
Glad you liked ! thank you :)
Such a great taste my brother. The shot, editing, audio and grade very taseful. Although I dunno how effective this is on YT maybe a little more energy will help convert more idk tho.
I'm glad you enjoyed it! indeed a bit more hyped in my presentation and faster editing would convert better however i often feel that calm and chill is my style so, maybe lower views, but at least I can be myself :) thank you for your comment and support! :)
I image the polarized sunglass work because they have a fixed angle, and the glass itself is curved. That's my guess
that's a really good point! I didn't consider the curvature
I love the really helpful timestamps and titles on this video. great work keep it up 👍
Im glad the timestamps helped! thank you for the support :)
really brilliant concept and dope execution
Thank you so much im glad you enjoyed it!
You deserve way more subscribers, this was nice! Lekker bezig! :D
Glad you enjoyed it thank you! :)
Extremely underrated channel
Glad you enjoy the content ! thank you !
Normal polarizing sunglasses get around this problem with a circular polarizer, which is independent of the rotation of your head.
Aaaa! I see, that's the most useful comment so far haha! so simple, thank you :)
Even if you get the same model of a polarizing filter, from the same manufacturer, from the same batch, there is no step in the manufacturing process to align polarizing lines in relation to the thread, so the weird parallaxy issue is going to persist. It's just not something they were designed around. I like the idea and the design too. I can see these being used in movies to give a character a certain feel.
Im glad you enjoyed it! Yea totally like film movie character glasses haha :)
THIS IS SO GOOD! 🔥
Glad you liked it! really happy with how the metal printing turned out its so cool to see that's now possible! Thank you for that :)
This is a super cool concept and design, really well done! As discussed elsewhere here, I have some concerns about the UV safety of these ND filters, but beyond that, I think the visual anomalies you're experiencing unfortunately are inherent to variable ND filters to some degree, as they remind me of artefacts I've seen using these filters on very wide angled lenses. Polarization filters vary in their efficacy depending on the angle of incoming light (hence why you have to readjust your CPL filter as you turn your camera around), and with two stacked, opposed/interfering polarization filters you will always have some difference in how light from the same source/part of the scene hits each layer of the filter across their area. In practice, you're getting two light blocking effects at once: the effect of the outer polarizer, which works as a polarizer, blocking out polarized light from certain angles (and, like all CPLs, would need some readjustment as you turn it around), and the stacked-polarizer effect, where the interference pattern between two polarizers blocks more or less light from most or all angles and polarizations. This is best seen on large VND filters on wide angled lenses, where you often get really weird quasi-vignetting where two opposing quadrants of the image are darker and the other two lighter, simply from the effects of different angled light being filtered differently across both polarizers. I'm assuming this is the same effect you're seeing just across two spaced out, smaller VNDs rather than using a single large filter.
Thank you so much for your incredibly detailed comment I really appreciate it! Indeed the UV filter situation is a little sad, I didn't know about this until afterward but I now have some UV glass on the way which can be inserted behind the filters so it doesn't impact the design, although I still would have liked to mention this in the video. your explanation is very nice, I like how these comments are transferring knowledge! have a good day! :)
really cool, I tried printing my own glasses but they had small leds on the frame so I can use them for working on projects/cars where I need alot of light!
Ooo thats such an awesome idea! i can imagine just having a completely kitted out pair of glasses, lights, nd fitlers, cameras, boneconducter headphones. XD
Incredible project, def will look into possibly using that design for my next frame of prescription glasses. It would be awesome to be able to rotate the polarized sunglasses part, when you’re out driving or etc & want to not uses your prescription.❤
That sounds awesome! id be very curious to see how you incorporate the prescription into the glasses, sounds like a great project.
I didn't know it was possible to bend PLA in hot water. That's not the best thing about this video but is probably the only thing I'll try by myself.
I'm glad it gave you some inspiration for your own project! its very fun to reheat and bend PLA, definitely handy for certain projects!
Yeah! Geniunely changed things for me lol
Nice project!
Glad you enjoyed the project! :)
i’m so glad i am on the side of excellent small channel youtube ❤ keep it up please!!
Will do ! thank you glad you enjoyed it :)
This is kinda wacky, and I love it! Now to make one with CPLs
Glad you liked it!
A huge bump while driving and next thing you know is that you are completely in dark 😂
hahah, or all of a sudden your in heaven with a bright white light on front of you Xd
This is awesome!
Glad you liked it !
Imagine using step up rings with these, that would be so comically cool!
hahah yea and then adding like effect filters XD, goldmorphic or something funky haha
Dude! I was going to do this. Now I don’t have to haha. Super cool.
haha I'm glad you enjoyed it! you can always make a better one! do let me know if you do id love to see it :)
Cool project!
Glad you liked it!
There are goggles used for tracer rounds back in WWII. They have a knob above the nose that turns two variable? filters. Not sure what the original color was but mine go from yellowish to red. Unfortunately the glass lamination is giving out so not something I can wear. But a cool idea nonetheless.
(WWII Variable-Density Gunner's Goggles)
I've looked up these gunner goggles that's so awesome! great inspiration, also with the dial in the centre, I've been thinking about making these with a sort of gear system in the middle that adjusts each eye piece simultaneously, kind of steampunk style, these are definitely going in the mind map, thank you!
Most sunglasses put the blinders on the arms, so they can fold flat better
aa yes I've seen these aswel. with the leather patches so to say, also considered this in the design phase however it didn't quite work out, probably worth another try though. thank you!
Very cool video, i downt usually comment, but i am sure to acknowledge your atention to detail!
I'm really glad you enjoyed it! and thank you for taking the time to leave a comment !
Damn I’ve had this idea for years but had no ability to make them. Nice.
I did want to have a way to turn both at the same time because that would be a lot cooler.
hahah awesome! indeed there's been quite some comments on how to make this better with a form of chain between the two so they move at the same time
Damn i was thinking about this like 2 weeks ago and was suprised it wasn't a real product yet
hahah yea its really one of those gems that a lot of people think about but don't have time to actually bring it to life, I was personally also surprised I couldn't find anything like this. thanks for your comment!
GENIUS
Glad you liked it !!
love the video , really nice shots , keep it up !!
Glad you enjoyed it! thank you :)
very cool, brother
Glad you enjoyed it!
Let's hope the algoritme likes this video more than the rest.
Lets see :) I also hope it catches on I'm really curious what other people come up with
This is great. Really great production and everything overall. Thought you had way more views and subs based on the thumbnail and work you out in at first glance (meant as a compliment). Also really love the chill laid back vibe of the presentation.
Bro looks like someone out of Dunes movie
hahah yea it intense XD thanks for the comment :)
Keep going man
Will do! thank you :)
Have I thought about doing something simliar?
Definetly
Did I attempt anyhting like it?
Definetly not.
Kudos for making it!
haha yea its one of those things I think a lot of filmmakers think about once upon a time but we are always strapped for time so it never really happens I guess, I wonder what other awesome things are floating around in filmmakers heads that need to be built :)
@@FlatLanderTech Have you ever seen the april fools where someone turned a steady cam into a baby carrier?
DUDE I SWEAR I HAD THE SAME IDEA AND HAVE A FEW SKETCHES FOR A PROTOTYPE LAYING AROUND. Hit the like button and am typing this comment without actually watching the video, but I already know its gonna be dope ! I love it when things like this happen xD
nice i always wanted to do this
its indeed such an enticing idea haha, do you work in video production?
Great fkn vid bro!!!
haha I'm glad you fkn liked it! XD
love it
Blind Surfer Pete Gustin has basically the same glasses
I just looking him up its the same! ( atleast I think ) that's awesome haha, thank you for sharing :)
What about maybe having the hinge for the arms attached at the back of the glare shield?
I actually just received some pictures from a viewer who showcases his dads old sunglasses where the glare shields hinge off the middle of the eyepiece, that way you could indeed add the arms to the glare shields I wish I had thought of this before haha. thank you for commenting ! :)
Maybe the weird reflection effect is there because you have two filters together, so if you have the front one aligned maybe the back one isn't? I'm not sure
yea I think that could definitely be a reason for it not working that well. perhaps its just really difficult to align them perfectly like this as you say
i would recommend putting an open source license on it or someone else can steal this from you.
Thank you for your comment I appreciate the concern, it has a non commercial licence on it, Idk maybe you mean something more comprehensive, but at the end of the day, i share the project more as like, look you can just make your own instead of going to the store to buy sunglasses, I'm hoping people see that as a better option in the near future, it would make the sunglasses market so much more fun, everyone can share their designs.
what software do you use for designing? it looks really easy and intuitive
Any chance the lens problem is b/c the left and right lenses aren’t perfectly planer? (Flat when compared to each other) wondering if a very rigid test print might test this. Pulling this out of the air but I could see where this might muck w. what you see.
Thank you for the video! Fascinating and really interesting.
I'm really glad you enjoyed the video! its most likely due to slight unalignment indeed ;)
support
Support here, how can I be of assistance?
HOW DOES THIS THING NOT HAVE MORE VIEWS
haha I'm glad you enjoyed it! thank you for leaving a comment! :)
Great Video, what app are you using on the iPad to do your CAD work that you showed in the video?
Its called Shapr3D best app I've used for 3D modelling, its very intuitive. Glad you liked the video! :)
slay
❤
:)
So Sunglasses use the same direction, where as ND aren't quite aligned.
I'm going to attempt another alignment session see if its fixable, I also think its because of this slight misalignment, thanks for your comment!
Although this is cool, what about safety? Do they have a UV ABC filtre? Otherwise using the is a hazard since UV intake is increased .
Thank you for your concern! In the pinned comment I explain the recent precautions in regards to UV light, I wish I had caught this before posting so I could include it in the video but I at first assumed the ND filters would have UV protection built in, that was not the case.
Sorry Shez got curly hair mate, not dreadlocks
She used to but I didn't realize they where gone until after recording, thanks for commenting
gyou gotta connect them with gears
That would be really awesome!
What software are you using to design those 3d models?
Its Called Shapr3D
have you tried them out of tpu?
I'm now seeing the end of the video. Great work on the whole thing
Im glad you liked it! haha yea tpu definitely has potential but then with a a thicker frame. these where a little to light and flimsy, thank you for the support!
Do they protect against UV? If not it can damage your eyes.
Thank you for leaving this comment, I am going to pin this!
Its indeed something important to consider as camera filters don't prioritize this, ill try to figure out if the ones I bought have UV protection otherwise ill adjust the product links.
Glass by itself protects pretty well against UV-B (about an SPF30) and UV-C (almost completely blocked), but not UV-A.
I think it's mostly fine, as UV-A is the least damaging. Additionally UV is also light, so polarizing filters will also work on it- meaning that when the "lenses" are dark they will block UV-A in the same way they block visible light.
Came here to say this exact thing. Using non-UV rated glass for sunglasses can be very dangerous for your eyes.
@@FAB1150 Oh no, this is not true at all. All light is absolutely not the same. There are materials that are transparent to visible light but that block UV and/or IR, and materials that are opaque to visible light but translucent or transparent to UV and/or IR. You can absolutely not assume that just because a material blocks one type of light it also blocks another. The same goes for saying "glass by itself" - what type of glass? In what thickness? Remember, buying off-the-shelf parts like these, especially if you're using cheap, no-name variable ND filters, you have zero control over what type of glass is used (or if it's even glass at all). They might be using PVA-based polaroid filters (most likely) or silver nanoparticle polarizers (less likely due to cost), and then there's the quarter-wave plate that circularly polarizes the linearly polarized light from the initial linear polarizer, which again can be made from multiple materials with different characteristics.
And, of course, the issue here isn't whether or not these materials do or don't block UV at all, but whether they do so relatively linearly with the variable ND effect of the two stacked circular polarizers, as the UV damage to your eyes comes from disproportionate exposure (i.e. your eyes keeping your pupils relatively dilated due to "dark" lenses, but there being a disproportionately high amount of UV light in the light that gets through the lenses.
It's entirely possible that these lenses are relatively safe in terms of UV exposure - many visually transparent materials are. But we can't say for certain, and are you really willing to gamble your eyesight on those odds?
The sun doesn't actually damage your eyes, it's a lie told to keep people indoors.
Whare are the famous framed shots???
Haha I appreciate your attentiveness, experimenting with this 2:1 ratio for a little bit just to see what happens :)
Dreadlocks xD janeisklar
she used to have really cool dreadlocks but they disappeared, I never notice these things haha but before I knew recorded the voiceover so sadly its a little weird in the video. anyway thank you for your comment !
@@FlatLanderTech haha lol nice 😂👌
@@FlatLanderTech I still have really cool dreadlocks! It's half of my head, they are unvisible because of my curls :) You never notice things indeed xD
What 3D app did you use on your Ipad ?
Its called Shapr 3D. very intuitive program, also works on the computer but with the ipad its so fast!
what app is that?
Its called Shapr3D my favourite app for making 3d models, it also works on normal computers but its just very intuitive
@@FlatLanderTech Thank you!
Any idea how to make it as prescription sunglasses?
Ooee that's a difficult one, its very hard to find perfectly round optics with prescription, but id say finding perfectly round glasses with your prescription and taking off the frame. sticking the elements onto one of these filters.
@@FlatLanderTech I suppose having some place to make round ones is not issue, more I am wondering if there would be space to fit additional glass under ND filters
What are you using for CAD?
The program you see on the iPad is called Shapr3D, its very intuitive highly recommend it!
Fuck the as litterly thinking about this the other day you beat me to it
hahah i get this comment a lot XD you can always make a better one, definitely let me know if you do id love to see it :)
Too kuch Vaseline on the lens
Haha your the first person who mentions the misty look XD you don't like it?
I agree with you tho, some shots are too much, im actually looking to replace my mist filter with a black satin 1 to get it a bit more balanced
@@FlatLanderTech i personally use a 1/4 mist on my pics.
@ekramul_preferably_nothing
shots are inconsistant. love the video and conecpt tho! i used some skiing google and turned them into glasses by carving them out and fitting them on a existing frame!
odd you are getting a parallaxing effect.
its with a motorized slider, i use Edelkrone :)
@@FlatLanderTech Try angling the lenses slightly inward .
are you dutch?
I am :) you recognize the accent?
@@FlatLanderTech yeah i kinda recognize and i also saw that the amazon link you included in the description was tho the dutch website :)
can you talk a little louder please and a bit more clearer. I think your glasses are cool but its a bit hard to understand and here you.
Sorry to hear your having difficulty understanding me, I'm indeed a bit of a mumbler and will do my best in future videos to improve upon my speech, thank you for the feedback !
Uow, I was just about to praise his English pronunciation, as it was very very clear for a non-native speaker. Interesting to see that we had opposite opinions
@@FlatLanderTech I think you're fine man
really enjoying your vids!
Glad you enjoy them!! thank you :)
That’s not an FD filter tho or am I missing something ?
in the beginning of the video i show 2 normal ND filters, just to test if it works, later I buy the variable ND filters, is this what your referring to ?
@@FlatLanderTech No, what your using here are CPL Filters , not ND Filters, ND Filters don’t remove reflections , they just reduce the amount of light hitting your sensor