EUR 1.490,00
Aperture: | 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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Reviews
Written by Stephan Schlaipfer
on 2021-05-22
"Der Photo-Newton ist sehr gut verarbeitet und hat eine 1A-Bildqualität. Nur dran denken, dass man zum Befestigen immer eine 2. Person benötigt bei 22kg Gewicht :-)"