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TS-PHOTON 12 F4 Advanced Newtonian Telescope with Metal Tube

4.564,32 RON

Disponibilitate: 16-30 zile

The PHOTON Newtonian reflector with 305 mm aperture and the aperture ratio f/4 is a fast astrograph for astrophotography and a powerful wide-field telescope.
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Disponibilitate16-30 zile
Specificatii tehniceAperture: 305 mm (12") Focal length: 1220 mm Aperture ratio: f/4 Primary mirror: Parabolic primary mirror with 94% reflection and protective quartz layer Secondary mirror: 100 mm minor axis with 94% enhanced reflection and protective quartz layer 100% illuminated field: 23 mm - ideal for APS-C format sensors with suitable coma corrector 90% illuminated field: 35 mm - thus also suited for larger sensors (flats helpful) Resolution: 0.39 arc seconds Limiting magnitude visual: 16.5mag Focuser: 2" Monorail focuser with 1/10 dual speed, adapter to 1.25" and compression ring Tube weight: 21g with tube rings and finder Tube dimensions: Length 1170 diameter 356m Tube material: Steel
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