On Thu, 06 Apr 2006 13:22:16 +0100, Rob Studdert <[EMAIL PROTECTED]>
wrote:
On 6 Apr 2006 at 8:12, Mishka wrote:
nothing scientific, but as a guess: if your sensor outresolves the
lens (take a look of an out of focus pic with any lens), at
large magnification, you'll see essentially blobs of uniform
grey of size much larger than the size of a pixel.
if your lens outresolves the sensor, at high mag.
you'll see all kinds of weird things on the scales of 1..3 pixel
(aliasing. moire, etc etc).
of course, in real life it's a mixtureof both, since at
125 pixels/mm (60lpmm) pretty much any lens is close
to its limits, but from what i see on my pic, it's more like the
second case.
The problem with that theory is that there is a low pass AA filter
between the
lens and the sensor in the case of the Pentax DSLRs
I'm glad this has caught your attention, Rob. What's your technique?
John
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
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