APO refractors

Borg fluorite apochromatic refractor 90FL f3.9 with ESATTO 3"|APO refractors|Primalucelab en
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Borg fluorite apochromatic refractor 90FL f3.9 with ESATTO 3", 90mm diameter, 350mm focal length (f3.9), 6 elements fluorite apochromat, carbon fiber tube with 3 inches ESATTO focuser, rear thread for camera connection, PLUS support rings.
Borg fluorite apochromatic refractor 107FL f3.9 with ESATTO 3"|APO refractors|Primalucelab en
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Borg fluorite apochromatic refractor 107FL f3.9 with ESATTO 3", 107mm diameter, 417mm focal length (f3.9), 6 elements fluorite apochromat with Canon lens, carbon fiber tube with 3 inches ESATTO focuser, M57 camera rotator, rear thread for camera connection, PLUS support rings. This wonderful apochromatic refractor with fluorite optics offers an incredible...
Takahashi FSQ-85EDX apochromatic refractor with ESATTO 3"|APO refractors|Primalucelab en
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Takahashi FSQ-85EDX with ESATTO 3" is a wonderful compact and powerful 85mm f/5.3 Petzval quadruplet apochromatic refractor that, thanks to ESATTO 3" focuser and PLUS rings, is perfect for wide-field astrophotography also with large sensor cameras.

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