What is ISO? ISO Has NOTHING To Do With Exposure!
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- Опубликовано: 8 фев 2020
- What is ISO? How does camera ISO work? How does it affect exposure? This photography tutorial explains these concepts in simple to understand language. NOTE: ISO is a very complex topic. Some of the ISO exposure and light settings have been simplified for clarity.
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#photography #iso #camera 
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![What is ISO - Camera ISO and the Exposure Triangle Explained [Ep 2]](/img/1.gif)
ISO is a complicated topic. Hope this helps. Feel free to share any ISO tips below.
pal2tech My man Chris! Went full Wayne Szalinski lab coat mode at the end of this clip hahah. Glad to see u back at it man!! A quality video, well done! My best ISO tip is more lighting lol. In all seriousness sometimes you can’t. Then maybe all we are left with is “fix it in post” kind of work arounds... which would make a great segway video by the wayyy ;). As a new photographer it’s been hard to find content in the pal2tech learning style that helps with the whole “post process”; stacking, mild composite edits in photoshop, cleaning up noise, these are all foreign to me right now. A problem/solution approach is so valued and you’re def good at delivering that.
pal2tech 👏👏👏👏
I make it a point to NEVER buy anything or vote for anyone who advertises and otherwise interrupts RUclips vids. Got that advertisers?
I loved with how much passion and fun u explained such an difficult topic :)
I played around with single lens reflex cameras in my younger days, but am just learning how the new fangled digital cameras work. I ignore ISO with the idea that I can adjust brightness "post production." Meaning, if my computer image is dark, I can use the software to brighten it up and lose no picture quality. Am I right?
I never realized before that ISO is just like the input volume when recording audio. It doesn’t make the instrument play louder, it just amplifies the existing signal. 🤔 Thanks!
As a musician. Your comment is revelation.
ISO is input gain! Nice comparison. The noise with higher ISO photos is like the hiss of a higher noise floor from cranking the gain!
And without the glass of water and ice tray.
oh that's good
You are the Bill Nye of photography! I grew up learning science from Bill Nye and he has such a fun, easy, yet technical way of teaching. Your videos feel the same way and I can always feel your enthusiasm for the craft which I love. Thank you for all of the knowledge bombs you continuously drop!
... for us old timers it was all about "film sensitivity" ASA number (usually varying between 50 and 400 ASA) and you chose your film according to the expected light conditions of your shooting setup. Sometimes you could try "pushing up" your ASA into extreme territories like 1600 or 3200 for extra dark conditions but the price to pay was obvious graininess (noise) and less contrast. There was not much wiggling room for post production corrections if you missed the right exposure mix!
Good point. I've usually thought about my digital ISO as ASA. It seems to be more like, but not completely related to push/pull. There is a healthy range of adjustable digital ISO that is natively comfortable for your camera and outside of that range it becomes the equivalent to push/pull film. OR is it that there is only one, the lowest ISO is the only true equal to a film ASA? That's where this is losing me a tiny bit.
As a film guy, this is the best clarification of ISO in digital photography I've seen. Thanks!
your channel is the best in photography! i enjoy watching and learning from you!! keep it up pal2tech!
Welcome back! Great video, as usual.
Really love how you explain it slowly and detail. I'm not a native American. So I don't catch-up much with native speaker. Thank you so much.
That cracked me up! Digital to Analogue! Priceless and more importantly unforgettable!
An excellent video as always. The wait for your return was worth it! Made a very dry subject amusing. Your humour is greatly appreciated. Your children must enjoy you explaining things to them with practical demonstrations like the ice tray! Love it!
Thank you!!! 🙏 Yeah, gotta have fun with this stuff. Helps to wrap my head around it a bit.
Love your videos! Super informative and fun to watch! I really enjoy the way you explain the subject matter. Your technique makes it very memorable. Keep up the great work!
Thanks for this video! You not only saved tons of my fotos, but also gave a good tip to save some old destroyed by electrical voltage. Greetings from Germany!
This guy is a YT *star*, period. (The shaking of the ice cube thingy?? Getting all f* wet just to illustrate the concept?? I’m sorry, I’m not seeing ANYONE in YT going that far to explain anything…). Thank you, sir! BTW: I’ve been playing a bit more with my humble XT200 15-45mm, and your tips are definitely helping me learn more and more. Thanks again! Please keep up the good work!
This is what I’ve been trying to find. I’m new to photography and have an XT4, I’ve really struggled with getting all the ‘pieces’ of the puzzle together and really over complicated it for myself as no-one has explained it like this.
Thanks so much, love your videos, they’ve been my go too since purchasing my camera!
You are a good teacher. Thank you for sharing this.
Good to see you back!! Funny and interesting explanation about ISO :)
While everything you say here is technically correct, most of my students are only concerned with the camera's inputs and outputs. From their perspective, the "effective exposure (actual exposure + ISO)" IS the actual exposure. So, heuristically, there is a real advantage to treating ISO "as if" it were a third exposure variable. The exposure triangle is just too good a teaching tool to ignore, at least early on. Excellent video! Thanks.
Yes, I think the Exposure Triangle should always be used to explain this. I just wanted to dig a bit further under the hood in how it's affecting the sensor vs. aperture and SS.
@@pal2tech And that you did! Much appreciated!
I have just ordered a new X-T3 and am really appreciating you clear informative videos. I am learning things I have never been clear about reading other camera manuals over the years which are far too extensive and hard to understand. Many thanks. I look forward to ever new and very enjoyable video.
Best explanation ever!! :), nice to see you posting videos again! Cheers!
Thanks Juan!! Yeah, trying to get more videos out than I've been doing. It's too much fun to only do one per month!
You simplified the explanation of ISO, especially extended ISO setting. Great energy In the delivery, overall a great video!
This video randomly appeared in my google news feed, and I’m so glad it did!!!! Thank you so much for all the information. I have so many questions and your channel is exactly what I’ve been looking for and needing. Thank you so much for all your work and information. You, have definitely gained a new subscriber, lol. 😊❤️
Thank you Nicole! That's so awesome to hear! Don't hesitate to let me know if you every have any other questions!!
This is the first video I’ve seen of yours and I’m already subscribing. You are a fantastic teacher. I would have gone to college if at least one of my teachers was like you.
You're up to something great with this kind of videos :) Thanks for explaining it so thoroughly
Thank you so much!!!!! 🙏
Exactly what I was looking for. Covered Everything possible. I am amazed that such information is free to get on this channel. Other than that, the intro this time was absolutely stunning BUT it was great to see you back with similar pattern of video again :D Great! Great! information.
I thought I understood ISO until this pal2tech lesson. Now I'm saving all the pal2tech vids available. Really great light style of teaching.
Vincent!!! Man, you totally made my day!!! Thank you sir!!!!! You ROCK!!!!
thanks for the video! you always have good topics that are helpful!
Hey Chris, in these really challenging times I am re-watching all your videos. Your amazing energy is so uplifting, please keep up the good work, and stay safe
Thank you Al!!!! Really appreciate hearing it man. Best to you and your family!!
This was an amazingly informative video, thanks for your efforts. Great way to explain a very difficult topic. Look forward to the next video that expands on the topic of ISO
It shouldn’t be called the “exposure triangle.” It should be called the image brightness triangle. Changing any of the corners has an effect on image brightness. You did a good job of explaining a very complicated subject. Personally I usually choose my shutter speed and aperture based on artistic choices and then set the overall image brightness with the ISO setting. Sometimes I do it manually and sometimes I let the camera choose one or more of the settings based on a range and strategy I have preselected.
EXACTLY: Image Brightness triangle. I'm all for that.
This is so good!
Best teacher I've seen on this subject! 💚
Great video, and also educational!
Just finished this awesome video it's good to see the information broken down in a usable way. I did one year of shooting where I set the iso at 400 and did not allow myself to move the iso. this one thing improved the quality of my photography by leaps and bounds. This method frees you to focus on composition lighting and motion capture. Liberating is the only way to describe it. I would recommend at least a few weeks of intensive shooting at a fixed iso it's a good look inward.
Thank you again for this helpful bit of information.
Wow, this is amazing video, easy to understand!
I had no idea that ISO was simply post exposure electrical amplification. The analogy to digital zoom is a great shorthand way to understand the concept. Thank you.
Thank you!! Yeah, it took my several weeks to wrap my mind around it, but yeah, you are exactly right: post exposure electrical amplification for sure.
Great explanation! Great video! Also, I love your presence on camera, very engaging and well spoken, as well as funny and warm.
Thank you Tayen!!! That means so much to me to hear. Please keep in touch and thank you for stopping by the channel!
One of few channels stating this simple yet important point.
Thank you. Some people got really angry at this.
You are amazingggg!!! You make things seem so simple. Best chanel to learn ♥
Thank you. The way you present things syncs perfectly with the way my brain takes in information. I just discovered your channel today. It's a rainy day in Saigon and I'll be staying in and having a bit of a binge watch.
Amazing! You are the best camera teacher in RUclips 👍 Thank you!
Thanks for this! It helps me to use the videography terms of shutter speed (in relation to frame rate), iris instead of aperture, and gain instead of ISO.
Awesome Brett!!!!
Good to see you back.^^
Thank you sooo much for this explanation. I learned a lot from it. I am now subscribed and look forward to more of your videos.
Thank you so much Alice!! That means a lot to me and please do keep in touch! More videos coming this week!
gotta love this guy. such a passion. just subbed
Dear pal2tech,
Really good to see you back and with a really interesting & well thought out topic. It stopped me and made me think, so thank you.
Looking forward to more of your vlogs in 2020
Hey Richard, you are most certainly welcome!! Thank you so much for the kind words and I'm glad you stopped by the channel!
This was really helpful in explaining iso and exposure. It really opened up my eyes. The visual with the ice tray and bull horn really work.
I LOVE how you explain ISO very creative, easy to understand and fun. People like you are natural teachers. I’m subscribing. Thank you
After watching your video, I feel that I have learned a lot, but I want to ask a question, what is the difference between exposure index and ISO?
Good to see you back
Infectious enthusiasm. Such a fun and informative video - subbed in first 60 sec! Look forward to more.
Wow, Pete!! Thank you so much!!! You ROCK sir!!!!
Wow this is a really good explanation. Thanks!
Mate, best vid ever on the blumming exposure traingle! Cracking stuff👍👍👍👍
LOL, thanks!!!
This is your best video yet! Blew my mind. And I considered myself an "intermediate " photographer because I understood the triangle and could shoot manual decently. Lo and behold!
Thank you! I'm one step further on the Dunning-Kruger effect graph thanks to you! 👏👏🙌🙌
Thank you so much!! 🙏🙏
Brilliant explanation !!! Thank you very much for this pal !!
I stumbled across your channel while doing research on ISO and ISO invariance. I love your approach and delivery here. Too bad you're a Fuji guy and I'm a Nikon guy, I'd watch a lot more of your videos!
Much appreciated!
Great to have you back man!
Thank you Vincent!! That’s so awesome to hear!!! 🙏🙏
You make information palatable & more importantly FUN! Which happens to be how I learn best & retain interest in hobbies. Many thanks ❤
Such a great video - mind blown!
Excellent as always.
Crazy person with lots of new information... Lovely 💕💕
I definitely agree on the CRAZY part!!
Love your vids. Just found you and am bingewatching them all.
Old photographer, long time to understand iso concept vs exposure.
Today I understand : light plus camera settings matches what the sensor sensitivity requires
Smiling all the way through! Great video...good to see ya again!
Thanks Steve!!! As always, I LOVE seeing you around here pal!! I hope are doing great!!!
Always great explanations- better in that respect thano most other camera sites.
These settings are so helpful and the insights are so good that I feel I can start using my X-T4 immediately. But I Still have update the camera to the latest firmware update. Thank you so much pal2tech 🙂👍
I LOVED the vid 🥰❤️
great video, thanks!
This is some quality content I watched it with pleasure. I want more!
Thank you so much Bogdan!!! That's very kind of you to say and more videos coming out this week my friend!
Wow! Wonderful and easy explanationg of the process. Thank you!
Not a problem. Thank you so much for the kind words Gennaro! All the best to you sir!
You’re a wonderful person. You teach like no one else
Thank you so much Giovanni!! 🙏 🙏
So instructive and so funny :-D keep up this good work !
Thank you so much Sébastien!!! I really appreciate the kind words!!
Me alegra enormemente tu regreso. Great and clear explanation
Thank you so much!!!
love it, just love your work, thank you so much for doing what you doing.
Thank you so much!! 🙏
Now THAT made sense! thank you!
Great tutorial on explaining ISO and exposure. I’m new to photography and this was a fantastic learning video for me! 👍👍
That's so awesome to hear Jerry! And welcome to the Fujifilm / photography crazy family! Hey I'd love to follow your journey.. I'm at IG at @pal2tech if you ever publish photos or have a portfolio over there...
Love your energy and presentation
On my XT 4 i assigned the ISO function to one of the command wheels. I simply find it easier to use since there is no need to have a look on the big ISO button and by doing so loose sight of your composure and exposure and shutterspeed.
But aside from that i noticed another noticeable advantage. i now have access to a minimum ISO of 80 instead of 160. Strangely i do not hear anyone in RUclips about this. Just wanted to share this.
BTW thank you for all your input. Im a new fuji user and your channel helped me so much to understand my XT4.
GREETZ Cliff
This is a great explanation for why in certain situations I will, in a situation where available light cannot be managed (action nature shots, for instance), underexpose a photo with my digital cameras because I can push the exposure in [Lightroom] after the fact using its 'algorithms / amplification' bits and widgets rather than pushing the ISO in camera and using its 'algorithms / amplification' bits and widgets... doing it in post is sometimes preferable (again, to 'me') because I can control it very specifically and very precisely in post.
Nice to see u are back and well
Thank you so much! Appreciate it!
Simply great 👍
I'm with you as far as calling it I. S. O. because of my film background... I'm not changing. This was good for me. I tend to keep my ISO low. As low as I can for the situation I'm in. I am a pure novice/hobby photographer. I'm in it for fun only... I've never been paid for a single picture, but I enjoy the process.
Nice explanation. Thanks.
você é um professor maravilhoso! muito obrigado!
I just stumbled upon pa2tech. lThis is such a fabulous explanation of ISO--great for any photography level. Glad to subscribe!
Thank you so much! I really appreciate that and look forward to seeing you around here again!!
Thanks for the great explanation,,, love it... more chuck and more video.....
Sorry for the late response. I've been buried in comments lately so getting to this just now. Anyhow, thank you so much Michel!!! That's awesome to hear and I really appreciate your letting me know! Cheers!
When I will become as good teacher as you, this is how I will teach my students:
ISO is not your friend! ISO is that compromise that once you optimized aperture and SS allows you to gain some brightness in trade with noise.
This is how I have been seen the ISO for myself, as last tune once I could not get any more exposure through A and SS
Glad you are back. Very good explanation of ISO. I learned a little more. Thanks for this! I am looking forward to tour next video my friend!
Aw, Norm you are too kind!! Thank you so much!!!
Awesome lesson 👍
you are the best teacher ever :)
I couldn't learn it any better :))))
just subscribed recently after seeing your back focusing video, and really enjoyed learning from your fun videos.
Thank you Vhatz!!!! 🙏
Starting 2020 with 10k subscribers....congrats!! Well-balanced video humor/technical explanation. Suggestion for another ISO video: when and why to use the low extended ISO ranges? Great to see you back!
Thanks Riggiero!!! Yes, Extended Ranges, Invarience, protecting highlights, H vs L, and the topics just keep coming with ISO. It really is a part of photography that's in a class all of its own.
Thank you... explained in very simple terms... even I understood..
Thanks Dave!!! Awesome to hear man!!!
Welcome back man. You have such energy.
Thank you Sotirios!!! That really means a lot to me!
Good to have you back, great explanation of ISO and what it actually does to the image quality.
Thank you so much!! Going to stay awhile. I like it here. 😉
Good to hear that 👍
Keep up your good work!
Thank you so much Christer!!! 👍
How does ISO now on digital cameras compare to ISO on film camera? As someone who learned photography shooting film back in the 80’s (Canon AE-1) I’d be curious 🧐 📷 Thanks 🙏🏽
P.S. also what is/was the difference between ISO & ASA (which is what I remember being the term used to rate film stock sensitivity/speed)?
As usual - great job!
Best wishes
Thank you!!!
Absolutely the easiest to understand and most entertaining vid ever about ISO. Looking forward to our next date.
🙏🙏🙏 😀 Thank you!!
This is great video about ISO and how it works. Third time I’m watching it!! Thanks for clearing up the exposure topic.
Hey Jerry! Thank you so much for the kind words! Yeah, ISO is such a confusing topic - I am constantly making mistakes with it when I refer to it both in video and in articles, etc. I think it will forever be one of those topics in photography that no one ever 100% will fully be able to wrap their minds around. However, I think we're slowly getting there - and I really appreciate your kind feedback. Take care buddy!