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Old 10-06-2019, 10:42 AM
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Tinderboxsky (Steve)
I can see clearly now ...

Tinderboxsky is offline
 
Join Date: Feb 2012
Location: Kingston TAS
Posts: 1,036
Yes, the erecting prisms do have a slightly longer light path. I have 1.25 and 2 inch erecting prisms but have not had any trouble gaining focus with them. My scopes have obviously got enough back focus.

Sab, I have sent you a PM.