I wonder if this has some impact on the issue of "sharpness/unsharpness"...
not of the *ist D vs. other DSLR's, but in general, if DOF is somewhat less
than expected...
Tom C.
From: "Rob Studdert" <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: RE: OT: DOF and digital cameras
Date: Wed, 21 Jul 2004 10:41:30 +1000
On 20 Jul 2004 at 18:37, Joseph Tainter wrote:
> http://www.photo.net/learn/optics/dofdigital/
>
> Thanks for the link, Rob. I guess my 35 mm. lenses will have less DOF on
> the *ist D.
Well yes and no :-) As you may have seen in that article the DOF scales on
most
35mm full frame lenses are calculated using a larger CoC than is generally
thought suitable to apply to APS sized digi sensors. So once you have made
provisions for that and then taken into account the lens FL required to
provide
the AOV you require in the image using the smaller sensor then you end up
with
a minor net DOF advantage.
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT) +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998
