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±¹¹ÎÀºÇà - ±èÁ¤Çö(SLLAB)
810101-04-059178
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 | | | Model | RiFAst 400 F 3.8 | | Type | Riccardi Large Astrograph | | Primary mirror diameter: | 400 mm (16") | | Focal ratio: | F/3.8 | | Focal length: | 1550 mm (59") | | Linear obstruction: | 55% | | Full corrected and illuminated field: | 80 mm | | Dimensions: | 590x590x915 mm | | Weight | 40 Kg (88 lb) | | Back focus extraction (from back plate): | about 170 mm (6.6") | | RMS polychromatic (410-750 nm) spot: | 7.2 micron @ 26 mm off axis | | RMS polychromatic (410-750 nm) spot: | 8.4 micron @ 40 mm off axis | | Diffration limited in the 410-750 nm range | to 10 mm off axis | | Low expansion glass optical set, carbon/aluminum truss tube design, splitted light baffle, four Losmandy type dovetails, TC-01 three ventilation fans and mirrors heaters with manual control, shroud and cap covers. Primary cell detachable for an easy cleaning of mirror. Available in full carbon, athermic lightweight truss tube. | | VIEW ACCESSORIES » |
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