Show me your ISO

Matt,

Excellent macro shot. It doesn't look like iso 1600 hurt that one any.

But why did you choose high ISO for this shot? This looks like a standard strobe lit macro shot with everything in the frame at close range and well illuminated by the strobe. High ISO is very useful for natural light photos like Peter's. Fast motion would be another case but that doesn't look like it was required here. Was there some advantage to high ISO on this shot?

Again, super shot regardless of ISO.

But why did you choose high ISO for this shot?

Wait...I had a choice? Oops...

Was there some advantage to high ISO on this shot?

The...umm...advantage was that...well, I forgot to change it back to ISO100 after some astrophotography. Usually this is referred to as "stupid mistake"

~Matt Segal

Raising hand...

'cept I was lucky enough not to have done this on a dive... I was (also) doing some "astro" stuff, and the first 10 shots the next day were REALLY blown out. Couldn't understand what was wrong with the meter! ;-)

Moral of this story is:) surgeon fish general recommend not doing astronomy photography prior to scuba diving, ammendment 4-bOO2-c of the next dive table

Cheers

I've never done anything as foolish as shooting 1600. But I have found myself in the middle of a dive shooting at 3200.

ISO 3200 !!!!, wow! any higher and backscatter would actually improve the shot

Cheers