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DPChallenge Forums >> Photography Discussion >> ISO and Shutter Speeds
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01/27/2006 09:08:50 AM · #26
Originally posted by wavelength:

got any links to stuff, It's not that we're total idots as you put forth, LOL'ing all over the place, but maybe no-one took the time to tell us...

I'd love to go buy all those books, but I have kids to feed. Thanks for the info though.


The public library should have plenty of photography books.. It is rare that I buy a book that I plan to learn from without checking it out first. But here are a couple of links that could help too. I don't know if they're too basic for you, but it's a start. :)

Short Courses on digital cameras & photography.

Intro to Exposure
01/27/2006 09:25:11 AM · #27
Originally posted by TooCool:

Hey it really works! :-P I just got my first 4 1/2 minute exposure of a treetop and star trails. Gonna play some more... ;-)


For star trails, I'd recommend aiming for something around f4 or f5.6 at ISO 400. Gives reasonably bright trails

If you are somewhere urban, with a lot of light pollution, maybe ISO 100 might be a better goal.
01/27/2006 09:43:47 AM · #28
Just to make sure I understand this thread correctly; If I'm using ISO400 in my film camera, and then meter a shot using my digital camera (set to ISO400), can I just transfer the shutter and aperture settings directly to the film camera, and get exactly the same exposure?
01/27/2006 09:59:13 AM · #29
Originally posted by jhonan:

Just to make sure I understand this thread correctly; If I'm using ISO400 in my film camera, and then meter a shot using my digital camera (set to ISO400), can I just transfer the shutter and aperture settings directly to the film camera, and get exactly the same exposure?


Yes - you are just using your digital camera as a light meter. You could do the same thing with a film camera with a light meter, or a regular hand-held meter.

Everything you need to know about exposure is explained here: //www.fredparker.com/ultexp1.htm
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