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Ultraviolet Light Explained: See the world through the eyes of insects
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- Опубликовано: 14 авг 2024
- Ultraviolet light explained: Mad scientist Don Komarechka shows us how insects see the world using ultraviolet light. Think you know what the world looks like? Think again!
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Wouldn't mind more technical video about UV photography gear and techniques. Haven't seen many of those.
It's all faces, sunscreen, flowers.
That's all they do. I want to see the various UV bands: A, B, and C. I want to see landscapes, buildings, mist-scenes, fog-scenes, distant mountains.
@@-danR I hope one day people notice that flowers and faces are not the only thing in the world.
This was perfect!!!! My girls and I are studying butterflies this week and they wanted to see how ultraviolet light effects the different ways butterflies would see. We absolutely LOVED the video and will be subscribing =D
More amazed by the effect of sunscreen at 3:20 than the flowers actually!!
Science
So these images show only the UV part of the light? Can't insects see both UV AND regular light?
Your pink shirt and red flowers in front just blended with all greens around. Fascinating! I'd like to see more.
Absolutely fascinating! Keep doing this sort of thing!!!
Photography,biology, physics and more from a short and very interesting video 🙌🙌🙌🙌🙌
This is realy amazing
Excellent! Keep them coming.
For statistics, I personally really appreciate the theme and the conduction. Please go on.
This is great, it's like Natgeo on your backyard
Please make more videos like this! It’s amazing!!!
I want IR and UV vision! 🥺
Thanks Don, eagerly awaiting your book release...
Imagine a camera without the filters talked about below but a "tuneable" sensor. The sensor could observe uv visible and it light and with a tweak in the menu you could decide which wavelengths of light the sensor would use to create the image: uv only, visible light only, it only. And instead of just producing uv and ir pictures in black and white, one could instruct the camera to assign "false colors" to the images. The uv could be shades of light to dark purple for example. Or for it there could be red blue green assigned to light, medium, dark areas. This could also be done in post production I assume.
Yeah a sensor with 5 different primary colors would be interesting.
But the different wavelength don't focus the same so most lenses wouldn't work.
Best for this would probably be a smartphone with multiple camera sensors tuned to different spectrum that can combine their info into one picture or video. There is the Nokia 9 Pureview that did something similar.
I wish I could see 5 colors with my eyes lol. Maybe we'll have implants
or bionic eyes in the future so your brain can "learn" to see more
spectra.
Cameras can be modified for hyperspectral imaging - Dan Llewellyn (who makes the UV transmission filters I was using in this video) has one for sale: maxmax.com/maincamerapage/hyperspectral
What you'll need to do is pan the scene and put together the data for each wavelength as a panorama from each narrow vertical band, reconstructing the same scene simultaneously in over a dozen specific wavelengths. This is more of a scientific instrument than anything artistic... but it's out there!
wow I love your work and your presentation
I am a red blue green UV tetrachromat. I always thought that TV cameras were just lame at showing what things really looked like until I was in college. The prof said that the flowers had crosses on them that could only be seen under a UV light. But I could see them. Nobody else saw them. I traced the cross on one of them and the teacher took it back to the lab. He later told me that I got it right. I was not surprised except that nobody else could see what I could see. But sunscreen doesn't look black. It looks a kind of dark bright white. It is like a darkness that shines more brightly than light, but also a blackness that is blindingly bright. It is interesting to know that what I see on the screen is the way everyone else sees it. This is also why at night the colors seem to match TV more.
Dogs and cats can see UV but with their two-three cones the of one is UV they smell and pick UV things different.
@@bakatobijuu Did they tell you that?
so weird, I found this vid by watching an astrophysicist trying to explain the difference between infrared/ultraviolet and the JWST vs. Hubble. Loved this, so educational! swear, this is when and how YTube is so cool, to learn from a community. Cheers for this, subbed.
Infrared looks even better than UV already 😍
Excelent video!
Great video, Don as always!!!
Damn, this is captivating!
worthy part of the cannel!
Pretty interesting to use it at the beach
awesome video i would love more videos like this!
Loved it
Fun fact: Not only Insects see in ultra violet but arachnids do too meaning spiders no matter how big or small
This made my day. So cool
Oh yeah, he's back.
Love to see what's actually done to the camera's. Is it just removing the IR filter? how does the modification affect the normal shots?
Yes the regular filter is removed from in front of the sensor and is replaced. There are many different filters to chose from but then if you only want to see UV ... then you have to add a lens Mount filter like he did It’s very interesting. I have an IR modified camera. Depending on what wavelength filter you chose will dictate if you can do normal color.
NOT AN ADVERT!!! Go to LifePixel.com to learn more.
The “regular” filter in a normal camera blocks UV & IR LIGHT ... when you clean your sensor you are actually cleaning that filter
This was great thank you!!
Hey! You didn't say what you did to "modify" the camera. Tell us!
but that short part in the end was a missed opportunity, if you google "ir photo" there is quite a bit more than that (perhaps a theme for another dpreview video)
I could do an entire future episode on infrared. :)
@@DonKomarechka please do :)
And what about yours website? Unavailable for a few days.
Very informative and well done video/tutorial, definitely would like to see more.
Amazing !! didn't know about this ! :)
Thank you Tiny Hobbit for this explanation
I was in desperate need of a haircut when I filmed this. Thank you for noticing.
So when Arnie is being chased through the jungle, what light does Predator see in ?
You can ask him yourself coz he’ll be back!
Infrared. Because thermographic cameras see heat by using it. Arnie had to spread mud on himself in order to block the heat emanating from his skin, just as sunblock is used in the example in this video for ultraviolet. Here is a link to more info: en.wikipedia.org/wiki/Thermographic_camera
All of them
Thank you for this video! I just found this and it helped me with what I was looking for. Cheers mate!
Nice make more like this 👍
I plan on it!
Fascinating video! My favorite moment was when you transitioned slowly from the yellow daisy(?) to the UV view and back again! What is the lower range of insect vision, for the pollinating insects? do they see our full range plus UV, or do they see a blue-shifted spectrum?
More plz!
Very interesting video, thanks!
....XNite330C77 - $570 cost of the filter in 77mm
My son's been asking how bees see UV and what that looks like. this was a fantastic video thanks!
Great work, Don! Where did you have the camera body modified? I know you've modified at least one Canon EOS EF body. Have you modified mirrorless camera bodies too? I didn't see what the make/model of the body in this video is.
I highly recommend one of two places: LifePixel based out of Seattle or Dan Llewellyn of maxmax.com who operates out of New Jersey somewhere. He's the one that modified by Lumix S1 for full spectrum work - that's the camera that I was using for the UV reflectance imaging and Dan handled the conversion perfectly.
Why doesn't this have more views?
Amazing
Would you be able to make a video that shows how humans perceive color vs how bees and other insects perceive color? Looking at the flowers here shows the patterns the bees and insects see, but in what colors would those flowers and their patterns be? Thank you for your insightful videos.
Bees and other insects see colors in the UV range that our eyes and brains are not capable of seeing; therefore we can't imagine what those colors might look like or how insects perceive them.
I would love to know what NM is best for UV shooting. I've seen a couple of diff ranges but unsure what is preferred/what you are using in this video. I have a full spectrum camera and have various near IR filters but they are easier to find than bypass UV filters. I'd love to try UV photography. Also does UV photography require the same type of post processing as IR?
Hi I would like to know what colors bees dont like
Jesse Eisenberg on photography
So how does a garden or a piece of forest look like through UV? Let's say from a balcony perspective, wide shot. Does some hot spots start to appear (flowers let's say), or is it only when you get close enough to see real differences? Of course we humans, and the flying friends are much more complex then just contrast based drones. Light, color, scent, feeling etc.
How do humans look through UV / IR? What about the sky, starry sky too? Can we observe / learn something skin deep in humans through UV / IR?
Watch the video and most of your questions are answered. The only thing it doesn't show is the night sky in UV.
@@djeyewater I did watch it and i enjoyed it alot. I just wish it would be expanded outside of macro / close-up realm of flowers for future episodes.
@@villemononen5303 I think the reason for focusing on close-ups of flowers is that these are the most interesting in UV. As you can see in other shots, most everything else just appears dark, while the sky appears very bright, i.e. not particularly interesting. (Though, of course, what's interesting is subjective). I suspect a general view of the night sky in UV would be pretty boring, but nebulas in UV will be more interesting. The most popular UV pass filters are actually designed for astronomical telescopes.
Dermatologists use UV reflectance imagery to help diagnose certain skin conditions. There could be some interesting applications for landscape photography in this realm, as "UV haze" can visually look like significant fog - with a layered subject at different distances (think a series of hills or mountains) you can get a nice visual fall-off. It's this UV haze, when combined with visible light and detected by certain film emulsions, that would lower contrast in images unless you put a UV filter on to block it... but you can go the other way and embrace it as well!
As for the night sky - stars do give off UV light and that's why the sun is used as a UV light source. However, even in bright sunlight I was shooting the footage often at ISO6400 to 12800 or beyond to get usable footage at 1/25sec. Collecting the ultraviolet light from a more distant star would be problematic without specially-designed equipment. Keep in mind that a regular camera sensor is sensitive to UV light when modified, but still cannot detect the shorter wavelengths what are also emitted by stars which would have some scientific value.
note to self: don't mod camera sensors to IR when the winter G.A.S. sets in...
What camera and technology are you using to film this?
Unfortunately the required equipment is rare (lenses!) and quite expensive (filters). I tried uv photography this summer using a modified Sony A7 with a 1950s Steinheil 50mm 2.8 lens and a Baader UV venus filter. It worked nicely. However there's not too much uv light available to shoot even on sunny days. So I was mostly shooting at 5.6 and maybe ISO3200 to be able to hand hold my images. The results were interesting, but artistically imho a bit disappointing. I greatly prefer the look of infrared pictures over the uv ones.
While the equipment I am using is indeed rare and extensive, it can be done with far less. Do an eBay search for "Kyoei Acall Kuribayashi" lens, and you'll find one with filters for $120. I have used it and compared the results - and some of my b-roll footage was shot with that lens as well.
You're right that finding an artful expression in UV reflectance is difficult - though not impossible; this could be one of the other reasons why few people explore it.
@@DonKomarechka Thank you! This lens is really interesting 👍
This is just making me want to send my old camera in for full spectrum conversion even more! Could you elaborate a bit on what's special about the lens you used?
The lens is a Nikon Rayfact 105mm, identical to the older UV-Nikkor 105mm lens. Regular optical glass absorbs UV light, so this lens was made entirely with quartz optics with higher UV transmission. You do not need this lens to shoot UV, however; If you do an eBay search for a Kyoei Acall Kuribayashi lens, you can get some that even come with the filters. The filters I use are a little more advanced, the XNite 330C paired with the XNite BP1 for the cleanest UV transmission with no contamination from the visible or infrared spectrum.
@@DonKomarechka Ahh gotcha, I forgot that glass adsorbs UV-B. Do these patterns show up in the UV-A spectrum? Or do lens elements and coatings end up blocking that, as well?
@@ziginox patterns are more common in the longer wavelengths of UV - but these are blocked not only by the glass, but also the optical coatings in most lenses. I believe some patterns may extend into UV-B, but camera sensors can't really see far into this range because the sensor cannot detect it (even when modified).
@@DonKomarechka Thanks for the info! I really appreciate it!
I wonder what if the pictures of flowers taken only with IR and UV
Waiting for that camera to fall out the tree
That mean flowers beautiful color is now "they" want to show, the real face is they want to show bee and other insert?
So... when the bugs attack my white shirt as in frenzy, it's because it has some UV patterns which guide the bugs in?
Doubtful - it's unlikely that any unintended patterns show up in UV reflectance. That said, many fabric detergents contain fluorescing agents which make whites appear brighter. UV fluorescence will diminish UV reflectance to some degree... so there IS an interaction happening but I doubt the bugs care about it.
@Don i must say i loved this lill one even if short UV has always been a fantasy to explore in for me but sadly the cost of modifying for it would be to great for me so living it throu your picts & vid was great thank you as always =) // Anders
insects can see in wavelengths other than uv
Absolutely! But they can also see into the ultraviolet and this video was about exploring things beyond human perception.
in inferred, I would run towards the darkest spot in the summer
No need to ask for forgiveness, knowledge is love and free. It's a Balloon Flower !
“gardens” 😂
I am insanely mad that humans can't see UVs, IRs, X-rays etc..
Do a uv light video where the camera isn't stationary
I'm not against the idea, but... why? And working on these videos as a solo camera operator and on-camera person it gets tricky to have the camera follow me around. :)
Trippy tonga
Love your video. So fascinating. I took a couple screenshots of your video and want to put into my own video for social media for optometry firm. Is that okay with you? It would read like this: "#EyeFacts. As optometrists, we're fascinated with eye anatomy from all animals. #Hummingbirds can see in ultraviolet light which allows them see things we can't, such as nectar-laden structures and shapes in flowers. [insert screenshots of a couple seconds of your video.]
most of the video is of the guy talking or posing next to his camera.
UV photography is really cool, but given the fact that there isn't much UV light (even though the sun is a thing, but the atmosphere blocks most of the UV light) available (and given the fact that it's not really useful compared to something like IR), it's not really worth looking into.
"A lot of technical equipment"? OMG! Equipment like... things?
Many things, yes! The video wasn't about the gear, however.
You require a sensor modified for full spectrum photography, a special lens made of quartz or fused silica, filters that block the entirety of the visible spectrum as well as the infrared spectrum. Oh, and a UV light source - which thankfully we can just use the sun.
This video is so canadian.
100% Canadian!
What about cannabis?