6MP can equal most 35mm films in average conditions although it can
outperform most faster film in average conditions. Of course, the best
films can outperform 6-8MP iun ideal conditions, and that is what's
reflected in the spec sheets. It takes 10+MP to exceed 35mm film under
idea; conditions, and as the 1Ds mkII has shown you can match 120 film
with 17MP.
At 10MP and up the lens becomes the real limiting factor on performance
with 35mm and APS lenses.
-Adam
J. C. O'Connell wrote:
Get out of here, with fine grain films like
TMAX 100 and the proverbial tech pan you
can get way way higher than 45-55 lpm
on film. Go to kodak website and look it
up, its more like 200 and up lpm for the best films
themselves which is certainly higher than
an INTERPOLATED 6MP APS digital sensor like
the ones used by pentax and the others...
You are the first person I have ever heard
make that claim, that 6MP APS is as high as best film
resolution because its not equal in resolution to best
35mm films...
JCO
-----Original Message-----
From: Godfrey DiGiorgi [mailto:[EMAIL PROTECTED]
Sent: Sunday, September 18, 2005 10:23 PM
To: [email protected]
Subject: Re: Pentax K 2.5/200mm
On Sep 18, 2005, at 6:45 PM, J. C. O'Connell wrote:
... Since film is far higher resolving power than
current 6Mp APS sensors ...
I don't understand why you say this. Film acutance is quite variable,
and most films don't do too much better than 45-55 [EMAIL PROTECTED] Some films
can reach higher acutance under ideal conditions of exposure and
processing, but that's not the norm.
Godfrey
