Archived posting to the Leica Users Group, 2009/06/01

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Subject: [Leica] Intro and question.
From: imagist3 at (George Lottermoser)
Date: Mon, 01 Jun 2009 10:27:42 -0500
References: <>

Welcome to the saloon Bill.
I have no idea what removing an AA filter would entail.
But I'm really happy to hear your interest in the thread.
And look forward with excited anticipation
to following your AA filter removal project
and results.

George Lottermoser
george at

On May 31, 2009, at 11:09 PM, William D. Tallman wrote:

> I've been lurking for a while and have found the thread on anti- 
> aliasing
> filters very instructive.
> I read here because I stumbled across a reasonable deal on a IIIf and
> Summitar, now at DAG; seems like it's time to dig out the darkroom
> stuff, get some TriX, and see how well I do at street shooting.  I
> suppose that's just justification, given that I've never been
> innoculated against the Leica-bug ;)  But now there are some real
> issues, so it seems.
> I'm (still) trying to learn something about photography, and have  
> gotten
> a Canon 40D and some lenses, including a 100/2.8 macro; instant  
> feedback
> teaches more effectively than waiting for film to be processed long
> after the scene is gone.
> It seems that I can't get a really sharp image.  Using a well weighted
> tripod, the macro lens at f5.6, MLU, remote release, and shooting a
> stationary well detailed target at about 15 feet, manual focusing via
> Live View at maximum magnification, I could not manage to get a sharp
> image.  Taking shots and reviewing them the same way shows no change.
> Absent the removal of the AA filter, or an investment in a Leica  
> system,
> am I unlikely to ever get real sharpness from this (or any  
> comparative)
> digital gear?
> I follow the anti-aliasing arguments, but certainly don't have the
> necessary information to make any judgment.  If the site with the
> comparisons between Nikon D200's is to be believed, the anti-aliasing
> filters are well below the Nyquist limitations, I would think.   
> Ergo, the
> argument about software capping output at that level is  
> irrelevant.  Or
> am I not even in the right parking lot, let alone ball park?
> I'm thinking about acquiring a Pentax K7 to use with all my K series
> glass (have LX, etc), and so either of these two cameras might be a
> candidate for a filter removal.  I can't imagine that neither Canon  
> nor
> Pentax have sensors equal in capability to the Nikon D200.  The  
> question
> might be whether or not anyone knows how to get rid of said filters.
> Is this something that someone who can dismantle and reassemble a
> wrist watch movement might be able to do, given the tools, etc?  Or  
> does
> anyone know?
> Thanks for reading.
> Bill Tallman
> _______________________________________________
> Leica Users Group.
> See for more information

Replies: Reply from rgacpa at (Bob Adler) ([Leica] Intro and question.)
In reply to: Message from wtallman at (William D. Tallman) ([Leica] Intro and question.)