Archived posting to the Leica Users Group, 2004/09/24

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Subject: Digital M/Digital Rebel was Re: [Leica] Lost Faith in Leica
From: jonathan at (Jonathan Borden)
Date: Fri Sep 24 10:21:01 2004
References: <> <> <>

Nathan Wajsman wrote:

> Peter is right. The difference is clear. I don't care what the science 
> says, I don't know about what kind of anti-aliasing filter or whatever 
> my Canon 10D has. But I do know that when I put the 100mm Apo Macro on 
> it I get better pictures than I do with the Canon 85mm lens (which is 
> no slouch either), and when I put my newly aquired Canon 17-40mm L 
> zoom on it, the pictures are much better than those I got with the 
> (now sold) Sigma 17-35mm. All this talk about how with digital sensors 
> lens quality does not matter is bunk, based on my experience.
I suspect that most differences between shall we say the Leica 100 Apo 
Macro and the Canon Eos 100 Macro when imaged with a 6 mp sensor could 
be 'fixed' with judicous Photoshop USM, curves and levels etc. For Web 
JPEG images I would be rather surprised if this were not the case.

That is not to say that each lens may not have a unique 'signature' but 
highly corrected lenses ought not have such strong signatures that 
photoshop could not fix. Now on the other hand using a 22 mp sensor I 
would not make such a conjecture.

I admit this is all conjecture as I've not tested these lenses side by 
side on specific 6 mp cameras etc., but having looked into these issues 
once or twice in the past,. I would be willing to bet that after 
sufficient photoshop manipulation you'd not be able to find either a 
Canon or Leica engineer willing to put money on a wadger that they'd be 
able to tell the pictures apart.


Replies: Reply from feli at (Feli di Giorgio) (Digital M/Digital Rebel was Re: [Leica] Lost Faith in Leica)
Reply from mark at (Mark Rabiner) (Digital M/Digital Rebel was Re: [Leica] Lost Faith in Leica)
In reply to: Message from pklein at (Peter Klein) (Digital M/Digital Rebel was Re: [Leica] Lost Faith in Leica)
Message from nathan.wajsman at (Nathan Wajsman) (Digital M/Digital Rebel was Re: [Leica] Lost Faith in Leica)