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[OM] Re: Resolution of MF enlarger lenses,

Subject: [OM] Re: Resolution of MF enlarger lenses,
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Wed, 23 May 2007 18:11:47 -0400
Thanks, but my 50 and 90mm ranges are already covered.

Chuck Norcutt

Daniel Sepke wrote:
> Chuck,
> 
> Some of the Schneiders & Rodenstocks are well regarded for macro work,
> especially the APO versions in the 75mm thru 90mm range. Due to this
> alternate use they still command high prices used but are certainly worth
> looking at. In my kit I have a BPM manual bellows that has an OM camera
> mount and a M39 lens mount that when using a Rodagon 90mm will just get
> infinity focus when compressed. I also have an El-Nikkor 150mm which is an
> LF enlarger lens that can work with up to 5x7 negs I believe. The problem
> with LF enlarger lenses is the greater extensions required to get focus. 
> 
> So in answer to your question I believe that some lenses out there are up to
> the task you are asking of them. Though I doubt that they will provide a
> bargain in comparison to traditional lenses. 
> 
> Dan S.
> 
> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
> Of Chuck Norcutt
> Subject: [OM] Resolution of MF enlarger lenses,
> 
> If used enlarger lenses are inexpensive it occurred to me that it might be
> useful to have a long focal length enlarger lens to add to the small stable
> of 50 and 90mm macros.  I thought it might be useful as a copy lens for
> greater working distance.
> 
> But then I wondered if any of these long lenses are really up to the task.
> It has been rumored that some 35mm Canyon lenses are not up to the
> resolution demands required by the pixel density of the 5D and other full
> frame digitals.  Furthermore, MF lenses don't need to be designed with
> resolving power equivalent to 35mm lenses so what's the chance that an MF
> enlarging lens will resolve 13MP on a 35mm size frame let alone the higher
> pixel density of smaller sensor cameras?
> 
> Chuck Norcutt
> 
> 
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