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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: Tue, 22 May 2007 20:26:06 -0400
When you mentioned the bellows on the enlarger I realized that I hadn't 
even thought of the focusing problem at all.  But it has been 27 years 
since I sold my Beseler 23C so the method of using it didn't immediately 
come to mind.

Chuck Norcutt

Moose wrote:
> Chuck Norcutt wrote:
>> 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.
>>   
> There are some practical problems.
> 
> 1. Bellows. These lenses don't have any focusing mechanism, so they need 
> to be bellows mounted. A normal 35mm style bellows won't work with the 
> long ones. The rear portion of a Schneider Componon 150/5.6 fits into an 
> OM mount on the bellows with about enough room to spare to allow an 
> adapter. A 240/5.6 and a Rodenstock Omegaron 210/4.5 are both WAY too 
> big to fit. At least a MF bellows would be required.
>

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