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and the filter is optimized for telescopes with focal lengths from f/4 to f/15
It supports full-resolution imaging at 19fps in 12-bit mode or 16
9mm when the dew shield is contracted
4dBm(BER5%) 0
narrowband imaging allows these spectacular objects to be recorded with excellent contrast and surprisingly low background noise
Askar FRA600 f/5.6 Quintuplet Astrograph APO f/5.6 Telescope and the filter is optimizedAskar FRA600 f 5. 6 Quintuplet Astrograph APO Refractor Telescope The Askar FRA600 is a member of the FRA (Flat field Refractive Astrograph) series, designed for full frame astrophotography and refined visual observing. Its 5 element Petzval like design with two ED elements provides a naturally flat field, excellent colour correction, and crisp, round stars across a generous 66 mm image circle. Highlights 108 mm aperture 600 mm focal length f 5. 6
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