T3D Re: matching lenses

[koganlee@xxxxxxxxxxxxx]

>Ray Hannisian wrote:
>
>>
>> I am about to buy new lenses for my stereo video system.  Of course, I will
>> be buying them in pairs.  I have been led to believe that normally
>> available commercial lenses may vary considerably in their characteristics,
>> even their focal lengths.
>>
>> Is there any way to insure somewhat "matched" lenses, or to adjust them to
>> have more similar optical characteristics 'after the fact'?
>>
>>
>>
>
>Speak to David Lee, he had matched Schneider lenses tested at the factory for
>his homemade 4x5 camera.
>
>
>--
>Dale Walsh
>mailto:dwalsh1@xxxxxxxxxxxxxxxx
>http://welcome.to/solidillusions


Yes, Dale is correct. I decided I wanted the best lenses I could afford for my homemade 4x5 pair of cameras, so I called a friend who was a 
buyer for a camera store and told him I wanted 2 120mm Schneider Symmars and could he get the company to match them at the factory. He let me 
talk to the distributor in NY directly and I was able to tell him exactly what I wanted. A couple weeks later I had the pair which was 
measured at 123.2mm, which was farther from 120 than I would have expected. The serial numbers were 4 apart. I make 10"x10" print pairs, and 
at that size I can see no difference between the 2 lenses. The weren't inexpensive, by the way, at $750 each.

I have also matched medium format cameras, and even with identical cameras have found it a challenge to get 2 to match. I had to test 5 
Yashicamat 124G's to get a pair that is pretty close.

David Lee


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