ISO and Aperature settings

[DDT uk]

Thinking about this weekends Splash-in, I am curious as to the maximum ISO settings and minimum (or is it maximum - lowest f-stop) aperature that most people consider acceptable for shooting WA wreck type shots.

I'll be using an 18mm on a D70. I was thinking of 800 and something like f5.6 to keep the shutter speed high enough to remove any camera shake issues. It should be a bright day.

Thoughts?

Daniel

[Mike W]

I work it out t'other way round - I set my shutter speed to the minimum I'm prepared to use for a specific lens (1/15th sec for the 8mm fisheye, 1/30th for the standard zoom and 1/125th for my 105 macro), then set the corresponding aperture bearing in mind the amount of flash I want/need to use and if I'm using a dome port or not (With domes I set f8 mostly, but sometimes use f5.6 or f11 depending on circumstances, flat ports I'm usually shooting macro so end up at f16 or even f22, though I've been known to use f2.8 for availalble light), and then use the lowest ISO value that allows me to shoot with these settings.

I always try to keep ISO as low as poss, I can add noise in software but getting rid of it is much tougher. Having said that, 1600 ISO shots printed to A4 are pretty darn good from an SLR.