Dope Tech Episode 2

<<@MinutePhysics says : Help stop the worst parts of factory farming: http://www.farmkind.giving/minute-physics?promo=minute_physics>> <<@cliffwhite5552 says : Now do this video again but for film cameras!>> <<@meatman_inc says : Thanks for making this video!>> <<@filmowaniezprofitem says : I cannot argue with Your expenation. However, ISO is supposed to be used to shift expousure. So If i want to make sure that my highlights are save, I set ISO a notch higher (2x), and set expousure afterwards. So basicly I underexpose by 1EV. If I want to make sure my blacks are save, I set ISO a notch lower (0.5x), then set expousure. That way I overexpose by 1 EV. I'm talking from filmmaking point of view. Probably both ways of understanding it are proper, just depends of the expected result.>> <<@carpballet says : Do you always talk so gd fast?>> <<@amhtxc2960 says : Great explanation. ISO does not bring more light, it should not be part of the "exposure triangle"! In any case it´s useful to test by oneself, or by playing with DP Review-reviews-Image quality, whether the camera you use is more or less iso-invariant. For many modern cameras it is the same, in terms of noise and dynamic range, to recover brightness in post than to use a higher iso form the begining. Meaning they are iso-invariant. But if not, cranck up the volume!>> <<@proscure says : Im going to pickup my camera today, glad i found this video before that. Great explanation on how to approach ISO.>> <<@sinfuleldian9826 says : You talk way too fast. Slow down>> <<@grantbeerling4396 says : Well, I didn't know any of that, so thanks, high iso anxiety has now gone.>> <<@anxu_man says : TLDR : leave ISO on Auto>> <<@starshiptexas says : if you're on a tripod take 2 images and remove the differences?>> <<@seanwebb605 says : It took you 27 years to understand the difference between aperture, shutter speed and ISO? And another 27 to come to learn not to eat spaghetti sauce while recording narration?>> <<@EinKlienerDonner says : And...he still don't understand ISO!>> <<@Yakobovic says : Great video>> <<@spiked-b5761 says : Important : If you use auto ISO and want to "over-expose" your image (A.K.A "exposing to the right"), learn how to use "exposition compensation" (or whatever it's called on your camera, otherwise your camera will inevitably expose to the center. When one or two stops lighter and then darken in post will result in less -apparent- grain>> <<@IoRobot_98 says : I've spent the last day studying ISO invariance and how the sensor on my Nikon Z6III works, and I found out the opposite of what you're saying in this video. The Z6III sensor has a dual gain amplification, which means that you get slightly less noise by increasing the ISO instead of compensating in post up to ISO 640, then, at ISO 800, the second amplification kicks in and the noise dips and stays flat all the way to max ISO. If you look at Photons to Photos graphs, you'll see that the difference in noise is literally 2 electrons... that's because the readout noise is almost 0, thanks to ADCs being built-in to every single pixel (more or less) in stacked or partially-stacked sensors... This also brings other advantages: better colours and dynamic range, since you reduce the overall brightness of the image and thus there's more margin to reach the maximum luminosity of something captured in the picture... Apparently, your arguments work with older cameras, and not most of them; newer ones actually benefit from shooting with lower ISOs, or with just two ISOs at all... or even better, increase the ISO when you have a low-light and low-contrast scene, and lower it to then boost the shadows in post when you have a low-light and high-contrast scene...>> <<@EvelynDayless says : I'm very often in situations where I can't trust the metering of the camera. Have your histogram displayed and adjust so your highlights aren't blown out (also turn on zebras so you have a better idea of what's getting blown out exactly) Was weird coming to this thinking might learn something, when the video boils down to just expose your image properly :|>> <<@brickett6 says : This seems to not be true? I've taken bright daylight shots on high ISO and they still have a lot of noise compared to shots I've taken with a lower ISO of the same subject seconds apart>> <<@christopherjamesboudoir says : I recently had a conversation with a photographer that had been shooting weddings for over 30 years. He explained it as ISO controlling the contrast of a photo. This video is a wonderful representation of that. And I never thought of any other this that way. Now I have some experimenting to do. :)>> <<@ThisIsQuine says : wow, amazing video! thanks for the clear explanation>> <<@CapnMedia says : What a video man, you have a gift of teaching! Thank you so much for my new understanding of ISO!>> <<@03pontiac says : Very helpful. You lost me for a second, but I kept watching and my questions were answered. Thanks for the deep dive>> <<@matthornstein says : I knew it! RED’s adjustment of ISO in post never made sense!>> <<@brandonlanski5540 says : I have watched people incorrectly explain iso for so long. people who really know what theyre doing. I love this video. I thought youd leave out the photon part and all i can say is im really impressed. About changing iso in post. keep in mind this at least traditionally only possible on RAW files. The insinuation being youre saving lets say a 12 bit per channel file and thats "Straight from the sensor" like what the iso amplifier would have worked with anyway since that potentially is the first bottleneck in the sytem>> <<@PirOukay says : my camera is set so there are only two ISO options. 50 or 100.>> <<@andrewbrown6522 says : Good video & sponser.>> <<@asaboyes4332 says : Genuinely a little over whelming on a first watch, this is gonna take some intentional study on my part>> <<@TheWildlyTame says : Blinks in Film Camera confusion>> <<@DrGoosica says : Ive always previously heard it pronounced "I-S-O">> <<@Anti_During says : iso in film is scince and greater ;)>> <<@Derzull2468 says : It's the International Organization for Standardization. It covers way more than light in cameras.>> <<@HardToVaryPhysics says : Separating ISO from the myth that the sensor suddenly collects more light was the cleanest cut. Treating it as gain on a fixed photon budget made noisy photos feel like a physics constraint, not a camera personality setting.>> <<@artdedeco says : “Photons of light” gives me ick so much 😩😩 Protons of matter? Hypotenuse of right triangles? Ribosomes of cells? I understand you might be missing the “visible” in “visible light”, but even then, they just capture photons, period 😭 otherwise are we going to start saying “photons in the range of 400nm to 1000 wavelength for this sensor with these filters”? Just “photons” is simpler and more correct 😊>> <<@nickgoogle4525 says : The background "music" nerves -- as well the too fast speech.>> <<@wasserbrunner says : You didn’t mention base iso 😢😢😢 great video>> <<@innstikk says : You have premise I don't agree with. You are talking about high ISO being better than under-exposing the image. Sure, that may often be the case. However, if you can expose the image correctly, lower ISO will give you less noise. ISO 3200 f/4 at 1/1600 vs ISO 100 f/4 at 1/50 will give same exposure but more noise at ISO 3200.>> <<@vaer-k says : Interesting, valuable, and fun information presentation. Peak teaching skills>> <<@vangor-video says : i'm even more confused now 🙃>> <<@mao6320 says : it’s pretty much the same as microphone amplifier 😮>> <<@dnel83 says : In ham radio I learned it's better to use RF gain as a volume knob so you can bring a signal up to the optimal volume before noise kicks in. Same concept, different frequency>> <<@marcel9568 says : Update : now viewing the video : can you TRY to speak at NORMAL speed. Thanks.>> <<@marcel9568 says : After struggling for more than 15 years to even understand shutter speed, which is the only speed measured in seconds and not in distance per time unit, breaking my head over 1/3rd being explained as LESS than 1/4th, in contrary to mathematic equations and struggling over ISO also, I am not sure if I want to view this video. The things I mentioned have been causing numerous days and weeks with headache and anxiousness. On the other hand : I want to understand it. Let me try to view it…>> <<@TeraByte38 says : i learned that lower iso = sharper image and longer shutter time>> <<@frequentlycynical642 says : Hey whippersnappers! Before ISO there was ASA. International Standard Association or something like that. ASA was American Standards Something. They are exactly the same, only the name was changed.>> <<@TheBookofLab says : Just light ur subject properly and you dont have to worry about any of this bs lol>> <<@ArmstA79 says : 😂😂 Followed all the steps to get the perfect clean photo and then the flash came on and over exposed everything!>> <<@myselflosik says : Before this video, I thought increasing brightness in post-processing was the same as raising ISO in-camera if shutter speed and aperture were fixed. So I mostly ignored ISO. Thanks for explaining that missing piece>> <<@papa_mia4495 says : Wow, this changed my life - I own X an apology - It took me 500 years - I finally get it now etc…>> <<@Raybo3D says : Cameras usually have a nativ iso. I mostly just stick to that and try not to adjust it.>> <<@myk_und_saik says : No, i speak DIN>>