airplanenut
Topic Author
Posts: 598
Joined: Thu Sep 20, 2001 8:46 am

How Should I Choose An ISO Film Speed?

Sun Nov 19, 2006 9:34 am

I timed my next flight to be during sunset (sad to say, but it's a 55 minute flight and leaves at 3:42PM  Sad) Anyway, I got a window seat behind the wing on the side of the plane that will face west so I can get some pretty shots.

Last week, I took a night flight and realized after the pictures came out terribly (because of super-slow shutter speeds) that I was shooting on 200 ISO. How can I figure out what the best ISO for a dusk shot will be, so I can have the fastest shutter speed possible without compromising quality (or at least averaging the two).

I'm using a Nikon D70, and will have the Nikor 18-55mm lens on.

Thanks,

Jeremy
Why yes, in fact, I am a rocket scientist...
 
User avatar
JeffM
Posts: 7569
Joined: Sat May 07, 2005 3:32 am

RE: How Should I Choose An ISO Film Speed?

Sun Nov 19, 2006 10:31 am

Easy. Raise the ISO until you can support the shutter speed / Aperture combination you want to use.
 
airplanenut
Topic Author
Posts: 598
Joined: Thu Sep 20, 2001 8:46 am

RE: How Should I Choose An ISO Film Speed?

Sun Nov 19, 2006 11:02 am

Quoting JeffM (Reply 1):
Easy. Raise the ISO until you can support the shutter speed / Aperture combination you want to use.

Is there a reason not to just go to the highest setting (I think it's either 800 or 1600)? What exactly are the ramifications of raising the ISO speed?

Thanks,

Jeremy
Why yes, in fact, I am a rocket scientist...
 
Fly747
Posts: 1361
Joined: Sat Apr 16, 2005 9:03 am

RE: How Should I Choose An ISO Film Speed?

Sun Nov 19, 2006 11:09 am

Keep in mind that the higher the ISO the more apparent the noise will be in your photos. The lower the better as far as that goes.

Ivan

[Edited 2006-11-19 03:09:32]

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