Thread: [SOLD] Takahashi Sky 90 Fluorite Double Apochromat Refractor
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Old 08-05-2009, 11:46 AM
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higginsdj
A Lazy Astronomer

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Join Date: Mar 2006
Location: Canberra
Posts: 614
Ooooh this is tempting - but might be a little too expensive for a guide scope... What is the f ratio?

Can anyone comment on the imaging limiting magnitude difference through this compared to an old Meade 102mm f/10 SCT Camera lense with an f/6 FR.