Re: Photo question

[ Follow Ups ] [ Post Followup ] [ California Scuba Diving BBS ] [ FAQ ]

Posted by Gerry Smith on August 01, 2008 at 15:27:28:

In Reply to: Photo question posted by seahunt on August 01, 2008 at 15:00:45:

Bumping the ASA in digital can generate noise (white specks in the picture.) You're just telling the electronics to "over amplify" the signal - like cranking an audio amp to the stop. That said, most cameras handle 400 without any problems. Nikon advises against using 800 and up. Open the aperture really wide (f2.8 or better, f12 is pretty small) and focus manually as your depth of field gets tight as the aperture opens. A 4 second shutter speed requires a fixed camera and an immobile subject. Or you could buy a REALLY BIG flash...


Follow Ups:

Optional Link URL:
Optional Link Title:
Optional Image URL:
Post Background Color: White     Black
Post Area Page Width: Normal   Full
You must type in the
scrambled text key to
the right.
This is required to
help prevent spam bots
from flooding this BBS.
Text Key: