I wont comment on the quality or lack thereof of a 6Mp APS
sensor, but the fact that pros have switched to them says
nothing of quality. Pros went from 4"x5" to 6cmx6cm to 35mm each
time for lower quality and higher convenience. If 6Mp APS
is much more convenient than 35mm film then quality doesn't have
to be as good or better to justify switching, it just has
to be good enough for their customers...
JCO

-----Original Message-----
From: Don Sanderson [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, October 13, 2004 10:47 PM
To: [EMAIL PROTECTED]
Subject: *ist D image quality-_Was -Stupid Question #999


I already retracted my 1.5:1 comment, just a brain cramp. :-(

HOWEVER... one thing still bugs me.
It seems to me that the general consensus is that the D can for the most
part match the quality of 35mm. Otherwise why would so many people
abandon film for digital, even pros who have shot many thousands of film
exposures? I wouldn't think convenience alone could account for this.
This would indicate that an APS size sensor can capture as much, and as
quality image data as a 24x36 film frame. Now, I've only taken several
hundred shots so far with the D. Many of these however have been with my
best lenses, at the lowest ISO setting, on a solid tripod, with mirror
lockup, of carefully lighted subjects, as RAW. Out of those several
hundred I have only 7 or 8 that I would say could rival my favorite
Reala film. This is after long sessions in PS and trying for the best
result possible. I am using 7x10.5 inch prints for comparison. (8.5x11)
The most impressed I've been so far is this one:

http://www.donsauction.com/PDML/Hinge.htm

(Please note that this was a test, not an attempt at art!) ;-)

Unfortunately the web doesn't do it justice.
The print is sharper, the detail is higher
and the shadows are clear and open.

Am I simply not experienced enough yet in processing digital
or am I REALLY expecting a 6MP digital to rival film when this is an
unrealistic expectation? Or do I need to re-learn with digital the
things I've learned with film?

Sorry for the rant, 40 hours without sleep does that to me. :-( (Workday
from hell!)

Don (Off to bed now)


> -----Original Message-----
> From: William Robb [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, October 13, 2004 7:22 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Stupid Question #999, Macro lenses on ist-D
> 
> 
> 
> ----- Original Message -----
> From: "Don Sanderson"
> Subject: Stupid Question #999, Macro lenses on ist-D
> 
> 
> > On the *ist D wouldn't a 50mm 1:1 Macro lens be roughly equivilent
> > to a 75mm
> > 1.5:1 on a 35mm?
> 
> The reproduction ratio stays the same.
> 1:1 is 1:1.
> It's jut that with the istD, that 1 translates to a smaller amount in
> the viewfinder.
> 
> > Or, put another way: To achieve 1:1 couldn't you be 1.5x farther
> > away?
> 
> No, if you are farther away, you are no longer 1:1.
> 
> This is why I rail at people who try to do conversions.
> 
> William Robb
> 
> 

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