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? And what is a "base" iso? Is that the setting with most light but lowest noise? 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? Thanks, Dean -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of jonathan wills Sent: Thursday, January 27, 2005 2:01 PM To: List for Photo/Imaging Educators - Professionals - Students Subject: Re: Suggestions Needed At 1:22 PM -0500 1/27/05, LScottPht@xxxxxxx wrote: >I did not realize ISO 100 was not available. What is the ISO range? > Nikon claims to have solved the problem of excess noise with increased ISO, so the 200 base ISO in the D70 is as noise-free as lower ISOs in other cameras. In practice, there is no noise at 200 with the D70. The lack of lower ISOs impacts certain shooting situations but not the output from the camera. -- jonathan wills _______ wills design portland, oregon, usa
