RE: Digital ISO

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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 


[Index of Archives] [Share Photos] [Epson Inkjet] [Scanner List] [Gimp Users] [Gimp for Windows]

  Powered by Linux