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Old 01-06-2012, 12:49 PM   #15
Part-Time Railfan
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Join Date: Jan 2011
Posts: 1,381

You guys are gonna kill him. Start out simple.

Constraint #1 need to stop action of moving train with fast shutter speed, use 1/500 or faster

Constraint #2 want large depth of field for trains/landscape, need smaller aperature of f8 to f16 (ideally)

Constraint #3 the lower the ISO, the less grain in the image. in the daytime, there's no reason to ever go above 200 IMO.

Break above rules depending on which constraint is least important given the situation.

Make sure when you read your light meter it's not aimed at the bright sky or something real dark, otherwise the exposure will be off. Rather, aim it at the ballast or some bushes in the sun.
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