Re: Digital ISO

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But for the most part they don't really make much of a difference to the finished product, except for way wide angle lenses.
Terry M
----- Original Message ----- From: "Eclipse Agency" <eclipseagency@xxxxxxxxxxxxx>
To: "List for Photo/Imaging Educators - Professionals - Students" <photoforum@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Friday, January 28, 2005 2:42 PM
Subject: RE: Digital ISO



What do you mean ISO can be reduced with software?

I just read an article in Shutterbug about the differences between digital
and traditional lenses. There are MANY.

-----Original Message-----
From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx
[mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Jeff Spirer
Sent: Thursday, January 27, 2005 3:39 PM
To: List for Photo/Imaging Educators - Professionals - Students
Subject: Re: Digital ISO


At 02:25 PM 1/27/2005, Eclipse Agency wrote:
Is my general understanding correct that ISO in digital means how
sensitive the CCD is to light compared to a noise ratio? Has nothing to
do with grain I know but will a higher ISO setting produce more noise?

Yes, but it's less obtrusive than similar ISO with film. Also, it can be reduced with any one of a variety of programs.


Also, since were on this... How much of a downfall is there when using
traditional lenses not optimized for digital? Is it dramatic difference
or not much difference?

Lenses aren't really optimized for digital. Some lenses only fit certain digital cameras because they take advantage of the smaller image circle. But there is no optical optimization other than the image circle size.


Jeff Spirer Photos: http://www.spirer.com One People: http://www.onepeople.com/ Surfaces and Marks: http://www.withoutgrass.com





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