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TS Optics APO 90F5Q flatfield astrograph

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#1 Cbaxter

Cbaxter

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Posted 24 April 2024 - 10:37 PM

Very nice little scope sold under the TS Optics and Tecnosky brands. FPL-53 triplet objective with a built in fixed position doublet corrector that provides a 45mm corrected image circle. No sensor backspacing requirements. As long as it can reach focus the field will be flat. Even has a built in tilt adjuster and CAA. The stars are very good even in the corners of the IMX455 in my Sigma FP-L. Chromatic correction is superb 👌. I have only gotten a few test shots in so far but I'll post some samples when I have some more time. I also took some images of inside, outside, and at focus with a 10 lines/mm Ronchi photographic eyepiece and the results look really nice. I'll post them after I get around to getting them from my camera to the computer.

90mm F5 and 3.2" dual speed focuser compatible with ZWO AEF.
20240424_140737.jpg
20240424_133948-18.jpg

Edited by Cbaxter, 24 April 2024 - 10:44 PM.

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#2 Cbaxter

Cbaxter

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Posted 24 April 2024 - 10:40 PM

More pics:

M63 opening on focuser. M63 extension also has a removable M48 adapter with space for a standard mounted 2" filter inside.

20240424_134157-19.jpg

 

Objective. The reflection is from the quad band filter on the back and the odd pattern is my ceiling.

20240424_134943-20.jpg


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