OK. The Canon stuff convinces me. The f/22 shots are almost 3 stops
beyond the theoretical diffraction limits for the 22 MP 5D Mark III.
What it does not show is a comparison with f/8 where the diffraction
limits would not be violated. Nevertheless, it shows that one can
regain significant detail with the post processing for a specific lens.
I've obviously never seen this stuff. I don't own any Canon lenses and
gave up using DPP the day it was installed. But this stuff was probably
never there for the 5D anyhow.
I'll have to pay more attention to DxO and its price.
Chuck Norcutt
On 11/7/2014 12:32 AM, Moose wrote:
Sheesh! It works! Study is for brain exercise, maybe even fun, when you
have nothing more interesting to do. Practice is using it - 'cause it
works - 'cause it's useful.
This site describes Canon's implementation in their DPP app
<http://web.canon.jp/imaging/dlo/index.html>. Covers all the ground,
with purty pichures and charts and LOTS of with/without examples,
including several at f22 that are pretty impressive. If those real life
examples don't convince you this stuff is real, I guess nothing will.
DxO aims to provide similar benefits for the rest of the pack, specific
Point Spread Functions for each lens and aperture.
Sharper With Moose
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