[OM] Re: Pinhole conversion

[Chuck Norcutt]

Andrew Dacey wrote:
> 
> This is true. Worst case scenerio I'm out a body cap. Near as I can
> tell a #13 sewing needle is about what I need for the pinhole. I'm
> noticing a lot of descrepencies as to what various different sites say
> is the ideal pinhole size for a given focal length. I'm guessing that
> it's based on circle of confusion calculations? Unfortunately, the
> sites I've been on don't indicate what their basing their
> recommendations on so it's hard to compare.
---------------------------------------

My guess is maintaining a "reasonable" focal ratio

Chuck Norcutt


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