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Need info: Taylor,Taylor&Hobson IIIA 7.7inch f-6.5


mariano_ulibarri

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Hello,

 

I was wondering if anyone could help me identify a lens I have

recently discovered. I found it on a very old Kodak 5X7 field

camera (made by Ford?). The lens is a Taylor Taylor & Hobson

Series IIIA 5X7 7.7 inch f-6.5, mounted in a Bausch & Lomb air

shutter. If anyone knows anything, please let me know.

 

Thanks,

Mariano Ulibarri

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"Handbook of Photography" by Henney and Dudley, c1939, lists the TT&H "Cooke-lens, series 3a" f6.5 as a Cooke triplet formula, with a "Field, degrees" of 62 degrees. Here is one page I found showing information on the Cooke triplet design: http://www.sitek.se/section11.htm

A Google Groups search of "Cooke triplet" will get you more information.

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