Quote:
Originally Posted by RickS
FSQ-106ED at native f/5 has an 88mm image circle. With reducer or extender it's only 44mm.
Cheers,
Rick.
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Well then another FSQ106ED would be nice. I wonder if my TEC110 could handle it? Perhaps.
No reducer is no biggie with FSQ as the reducer is a bit wide and takes the FSQ down to 300mm lens territory.
I wonder what the vignetting is like though. I bet the vignetting increases significantly before 88m is reached. Usually there is a compromise.
Greg.