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Re: [OM] [OT] Questions for enlarging lens

Subject: Re: [OM] [OT] Questions for enlarging lens
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Wed, 13 May 2009 08:01:53 -0400
The difficulty of mounting an enlarger lens will depend on the specific 
bellows and lens selected.  If you check the lens mounting thread 
specifications (column 12) on the page Tim sent you will see that most 
of the lenses from 50-105mm or 135mm have a 39mm screw thread which is a 
standard Leica camera screw thread.  Choose one with the Leica thread ti 
minimize problems with adapters.

If your bellows is a Nikon bellows then the simplest and cheapest way is 
to add a Nikon to T2 adapter (commonly called a T-mount) at the lens end 
of the bellows such as this
<http://cgi.ebay.com/Celestron-T-mount-Adapter-for-Nikon-Camera-NEW_W0QQitemZ250420760792QQihZ015QQcategoryZ15215QQssPageNameZWDVWQQrdZ1QQcmdZViewItem>
Then add a Leica 39mm screw thread to T2 adapter from Beljan Mfg.  This 
is the only one I could find but we know him to be a good guy.
<http://cgi.ebay.com/Universal-Leica-Macro-Lens-Adaptor-M39x26-TPI-T-Mount_W0QQitemZ280344839287QQihZ018QQcategoryZ30059QQssPageNameZWDVWQQrdZ1QQcmdZViewItem>
This gives you two adapters... one which adapts Nikon to T2 (female) and 
the other with adapts Leica to T2 (male) and the two are joined at the 
T2 connection.

If you have a different type of bellows then you will need different 
adapters but you may still find that you will require a Nikon to T2 
adapter somewhere in the mix.  Third party bellows (such as those from 
Vivitar) may be found which are already designed to switch easily to 
different mounts and may come with a set of mounts for different 
cameras.  Since Pentax screw threads were also very popular you may find 
bellows with Pentax M42mm screw threads or T2 threads (very similar to 
Pentax but not compatible) or both or more.  Nikon body to Pentax M42 
adapters are also available 
<http://cgi.ebay.com/M42-Zenit-Pentax-Lens-to-Nikon-mount-Camera-Adapter_W0QQitemZ350164365339QQihZ022QQcategoryZ29971QQssPageNameZWDVWQQrdZ1QQcmdZViewItem>
as are Leica 39mm to Pentax M42 adapters
<http://cgi.ebay.com/Leica-M39-screw-lens-to-Pentax-M42-screw-mount-adapter_W0QQitemZ110322395370QQihZ001QQcategoryZ30059QQssPageNameZWDVWQQrdZ1QQcmdZViewItem>
These are more commonly available than the Leica to T2 adapters so a 
Pentax M42 screw thread bellows would be inexepensively adapted. 
Novoflex bellows are also designed for interchangeability of mounts but 
may be more expensive than others.

We need to know exactly what bellows you have if you already have one.

Chuck Norcutt


Michael Wong wrote:
> Tim,
> Thank you very much for your information.
> 
> Recent I read some article at HK photographic forum about mount the
> enlarging lens on Panasonic G1 for marco shots. I'm interested for it. I am
> waiting for Olympus M4/3 body but still no news yet.
> 
> By the way, is it possible to mount the enlarging lens on Nikon FM2 body
> through bellow?
> 
> Thanks.
> 
> ---
> Michael
> 
> 2009/5/13 Tim Hughes <timhughes@xxxxxxxx>
> 
>> Hi Michael,
>>     This link gives technical information, not really user manual , but
>> still interesting.
>>
>> http://www.prograf.ru/rodenstock/enlarging_en.html#table1
>>
>> I love using these high quality enlarging lenses for macro and micro work.
>> I have an expensive Canon Micro lens, but the Rodenstocks are at least as
>> good or better mounted on a bellows. In fact they sell versions of them for
>> industrial use, because the distortion is so low compared with normal lenses
>> that they can be used for accurate optical guaging applications.
>>
>> Tim Hughes
>>
>>
>> --- On Tue, 4/14/09, Michael Wong <mialop@xxxxxxxxxxxx> wrote:
>>
>>> From: Michael Wong <mialop@xxxxxxxxxxxx>
>>> Subject: Re: [OM] [OT] Questions for enlarging lens
>>> To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
>>> Date: Tuesday, April 14, 2009, 7:11 PM
>>  > Bill,
>>> I don't fully understand your meaning but really thanks
>>> for your
>>> explanation.
>>>
>>> By the way, where can I download the manual of the lens? I
>>> have searched
>>> google but failed to find.
>>>
>>> Thanks.
>>>
>>> ---
>>> Michael
>>>
>>>
>>>
>>> 2009/4/15 Sue Pearce <bs.pearce@xxxxxxx>
>>>
>>>> If you are using some sort of meter, it gives you
>>> infinite positioning.
>>>> With
>>>> click stops, it can be hard to set an aperture colose
>>> to a click stop.
>>>> Bill pearce
>>>> ----- Original Message -----
>>>> From: "Michael Wong"
>>> <mialop@xxxxxxxxxxxx>
>>>> To: "Olympus Camera Discussion"
>>> <olympus@xxxxxxxxxxxxxxxxx>
>>>> Sent: Tuesday, April 14, 2009 9:09 AM
>>>> Subject: [OM] [OT] Questions for enlarging lens
>>>>
>>>>
>>>>> Have got a Rodenstock Rodagon 80mm F4 enlarging
>>> lens from B&H. There is a
>>>>> release button, it makes aperture ring is free
>>> instead of stopped by half
>>>>> stop. What is the function for? Besides, I cannot
>>> rotate the aperture
>>>> ring
>>>>> to the slowest speed --- F22. It'll stop at
>>> F16 position. Although I am
>>>>> seldom to apply F22 but wish to know why.
>>>>>
>>>>>
>>>>> Thanks all.
>>>>>
>>>>>
>>>>> ---
>>>>> Michael
>>>>> --
>>>>>
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>>>>
>>>>
>>>>
>> --------------------------------------------------------------------------------
>>>>
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