Dynamic Range, Light and Stops of Lights, Simple

[@maltj]

This was probably the best video i have watched about dynamic range. Loved the bucket analogy keep doing these please.

[@luisfigueroa3300]

Great video Scott.

[@anil_hyderabadi]

Beautifully explained Scott! Awaiting your upcoming videos.

[@grahamleigh8398]

Even the best of us can learn from each other. Salute.

[@Mthompson4545]

Thanks!

[@WildlifeInspired]

You're the best!!

[@uaebifvideo5472]

Thank you for the information, Scott!!.

[@davidhuth5659]

Helpful indeed Scott! Thanks for sharing!

[@cgan2013]

Very basic and for the beginner, well presented!!

[@maryshields1935]

Explained in a simple clear manner, thank you!

[@gregschulz2946]

Excellent!!!!!!!

[@jackstutts6439]

You made the topic easly understandable Scott. A timely discussion given all the grief the Z6iii got about it's DR. I thought the technonerds were making a mountain out of a molehill.

[@glennn.3464]

Very good coverage of the basics of exposure. I would comment on one thing though. The graph you put up for shutter speed vs stops of light should have been curving down with the stops of light showing negative values with each doubling of the shutter speed. Your graph was set up to show positive stops of light as if you were getting increases in the amount of light with increased shutter speed. So the graph coulld have been set up with shutter speed on the X axis and light stops on the Y axis. That way as you increased shutter speed to the right the light would have shown as losses of light stops going negative on the Y axis. I think most people got what you meant though.

[@RetrieverTrainingAlone]

EXCELLENT! Dynamic Range is also effected by file format. For example, jpg files have 8-bit RGB pixel values ranging from 0-255, while 16-bit RAW formats would have 16-bit RGB pixel values ranging from 0 - 65,535

[@WildlifeInspired]

Good point. It's really difficult to make these and keep the content simple and easy to digest. I honestly prefer talking about birds. Lol

[@rschellie]

Where did you find the time to put together a video during the Fall warbler migration?

[@elainepersons9662]

I finally get it!!!!

[@uaebifvideo5472]

Getting the "exposure" right in the field will impact the dynamic range even if you own the best dynamic range capable camera.

[@BobN54]

I don't know where to start. You said it's 'simple'. It's simply wrong as far as most of the fundamentals go, and doesn't really discuss much of use about dynamic range. Starting at the most fundamental, exposure. At 4:14 you start talking about 'appropriate exposure', without saying what 'exposure' means or what the adjective 'appropriate' would mean when applied to it. A bit later you put up a caption which says 'ISO increases exposure by boosting the signal’, which reveals that you don't know what exposure is. It's the amount of light (that you keep talking about, without knowing the right word for it) and 'boosting the signal' (even if that was what ISO does, which it doesn't) wouldn't and doesn't change it. I know there are loads of internet sources that will tell you this nonsense, but that doesn't make it any more true. That's why when I see it I comment on it, in the hope that content creators will stop and learn their basics before passing on incorrect stuff to people they're trying to teach. There are loads of similar errors, mostly tied up with this core one. Anyhow, onto DR. The human eye has six to seven stops of dynamic range if you measured it in the same way as you'd measure a camera's sensor. The '24' figure only come in by counting in the action of the eye's iris (aperture control), its 'shutter speed', and slow adaptations that occur in different conditions - so if your eyes have adapted for night vision you can't see the same bright levels as when it's adapted for bright light. If you put all these adaptations into a camera, and allowed for your aperture control giving you maybe 6 more stops, your shutter speed control 12 more and ad them to the 12 that a decent sensor has then it has 30 stops of 'DR', miles better then the eye. The eye seems so good only because it's got a really great image processor working behind it. That's not the problem with DR - the problem is that our display media, be it print or display top out at about 9 stops. So, when you're creating a photo with a scene of high brightness range you're left trying to create an optical illusion of how to squeeze the appearance of a wider brightness range down to 8 stops or so. Most large sensor (mFT and bigger) cameras give enough sensor DR to cope with most scenes, but you need to control exposure properly to do it, which this video said nothing about and which your 'exposure triangle' will never tell you anything about.

[@WildlifeInspired]

Feel free to create your own video for basics of DR and I'll be sure to link everyone to it.

[@BobN54]

@@WildlifeInspired Not an answer, is it? You're still there trying to teach people photography when you don't know the basics of it. Take a bit of time to learn those, then there'll be less disinformation about. Probably something to do before you do the rest in this series. The 'Manual of Photography' is a good source for the sytuffg you don'y know.