Re: Cirkut lenses

[Andy Buck <buckwiet@xxxxxxxxx>]

- Dick Streff <ds85035@xxxxxxxx> wrote:
> I'm in the planning stages for a rephotography
> project of Cirkut photos
> of local historical interest. 
> 
> It strikes me from the outset that it may be tricky
> selecting the proper
> focal length lens to replicate the scenes as nearly
> as possible. 

It should be very easy. Assuming the prints you/they  
              have are contact prints from the
original cirkut negs,                 just measure the
length of 360 degrees in the print,                
divide by 2 and divide again by pi (3.14159) and that 
              will equal the lens focal length.

Andy



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