A Test on "exposing to the right" and ISO

chauncey wrote in post #5582665
Palladium, please help me with your reasoning.

Why did you use ISO 3200 during the day with good light?

If you look at the EXIF, it was shot at 600mm with f/6.3 (max f/5.6) and 1/800s. So I don't think it was all that bright out .

e-k

He was also exposing to the right.

E-K wrote in post #5582830
If you look at the EXIF, it was shot at 600mm with f/6.3 (max f/5.6) and 1/800s. So I don't think it was all that bright out .

e-k

Bingo -

Actually I have the camera set up to pick the iso depending upon the ss when using the TV mode.

The scenes look bright but 5 minutes later there was a storm.

Okay. here are some more results showing that exposing to the right with the same ISO if beneficial.

#1 400ISO exposed properly

#2 1600ISO exposed properly

#3 1600ISO exposed to the right and brough back down

#4 3200ISO exposed to the right and brough back down

all at 100% crops

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OK, I've been out of this thread for a day, but I think the Starburst shots are especially helpful. Look closely at the 3200 shot pulled back vs. the 1600 correctly exposed. To my eyes the 3200 is cleaner.

I agree with anyone who says this makes no sense since the non-1D cameras create 3200 by pushing 1600 internally.....but it also matches my own experience. I can't say why exactly, but 3200 pulled back 2/3 stops always looks better to me than 1600 pushed 1/3 stop.

And for sure, 1600 pulled back 2/3 stop is a lot better than 800 pushed 1/3 stop.

JeffreyG and 99, can we ass-u-me that these were shot in RAW?

Yes, they are RAW

a_kraker do you mind posting the 100% crops of those starburst pictures? or are those the 100% crops? thanks!

ok nvm my last post. i just read that they're 100% crops. lol sorry.

rc13k wrote in post #5585187
ok nvm my last post. i just read that they're 100% crops. lol sorry.

They actually may be more than 100% crops. I do crops in lightroom and I dont know exactly what a 100% crop looks like. It was a pretty small area that I cropped out though.