[WONTFIX] What about ISO 5000, 10000?

Started by Rush, August 28, 2012, 01:26:55 AM

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Rush

Hello!
We all know that the best ISOs with minimum of noise is 160, 320, 640, 1250 and 2500.
Why ML don't offer "low-noise" ISO 5000 and 10000 when toggling ISO? It is possible to set such ISOs manually but it takes time.
Greetings from Russia!

1%

5k works for me... I just use the disp shortucts and it will get there. Its just 3200 + gain either way.

a1ex


Marsu42

Quote from: Rush on August 28, 2012, 01:26:55 AM
We all know that the best ISOs with minimum of noise is 160, 320, 640, 1250 and 2500.

We do :-p ? Please point me to the source, I've missed that :-o

nanomad

He's wrong, according to what a1ex found:

Are ISO 160 multiples the best to use?
NO. They have harsh highlight rolloff and intentionally clipped details in highlights. I have no idea why.
Are ISO 100 multiples the best to use?
NO. While they do have smooth highlight rolloff, they are digitally pushed by a small amount (the exact value depends on picture style and other settings). What does this mean: a small amount of raw data, which actually has the best SNR possible, is simply thrown away.

Full read: http://magiclantern.wikia.com/wiki/ISO
EOS 1100D | EOS 650 (No, I didn't forget the D) | Ye Olde Canon EF Lenses ('87): 50 f/1.8 - 28 f/2.8 - 70-210 f/4 | EF-S 18-55 f/3.5-5.6 | Metz 36 AF-5

Rush

Quote from: Marsu42 on August 28, 2012, 11:59:51 AM
We do :-p ? Please point me to the source, I've missed that :-o
just search for some video ISO comparisons - ISO 160 is less noisy than ISO 100, ISO 1250 is less noisy than ISO 800.

Quote5k works for me... I just use the disp shortucts and it will get there. Its just 3200 + gain either way.
I don't get it with shortcuts in 550D/600D. Do you have 60D or 5DmkII?
Greetings from Russia!

Marsu42

Quote from: nanomad on August 28, 2012, 12:03:26 PM
Full read: http://magiclantern.wikia.com/wiki/ISO

Thanks for the link, so this is even more complicated than I though and I'm lucky iso selection with ml is limited on 60d :-p
* ISO 85, 175, 350, 700, 1400, 2800 - best for Neutral -4 and other low-contrast styles.
* ISO 80, 160, 320, 640, 1250, 2500 - good for a wide range of situations.
* ISO 70, 140, 280, 560, 1100, 2200 - best for high-contrast styles.