> That helps Skip, but can you explain how 2 stops would equate to ISO...It
> appears as if you multiply your ISO by 2 then do it a second time or
divide
> by 2 then do that again to get 2 stops either way...If I was shooting 800
> speed film, could I then set the ISO at 400? This would then open up the
> aperature more?
> Would this affect the speed of focusing?
No as the focus as I understand it is based on max apeture of the lens, i.e.
a f2.8 lens might lock focus faster than a f5.6 lens in low light.
> Which direction would be overexposed and which would be underexposed?
Thanks for your help
Jason,
Sounds like you need to get a basic book on photography. There are some
tutorials on the web, but I cant remember the address just now. Will send
them if I find them.
Darrell
[EMAIL PROTECTED]
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