On 3/17/2013 8:46 PM, Trevor wrote:
"David Taylor" wrote in message
...
On 16/03/2013 01:18, Doug McDonald wrote:
Lenses are quite the spatial frequency filter somewhere above 20 or so
Mpix on a full frame sensor.

Absurd: I own an 18 mpixel Canon7D, a crop frame camera: and it shows
bad moire on subjects like an LCD TV. And it has an AA filter.

Doug McDonald

Please you could point to a sample image? What does it look like zoomed
right in to 1:1 viewing? I wonder whether the moiré may be due to
resampling for your display?


I can easily get moire when using photoshop at other than 100% view also.
Proves nothing about the camera though.

Trevor.


I have the pictures. No, I', not so stupid as to not check for moire at
100% or 200% view. They are absolutely hilarious. Of course. I did say
LCD TV. And oh yes, I did use my cheapest lens (50 mm f/1.7, at f/4.5),
but the moire is visible with my 24-105mm f/4L zoom, just not as
horrific. Pics posted tomorrow on Dropbox, I can't do that from home.

Doug McDonald