Manufacturer: Geoptik
Product number: 10B004

EUR 169,00


incl. 19 % VAT (DE)  
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Geoptik Filter Drawer for Newtonian telescopes and especially Dobsonians
The filter drawer accepts 4x 2" filters. The filters always click into place in the optimal position. The drawer is mounted to the inside of the tube. The drawer is completely made of black anodized aluminium.

The Geoptik filter drawer is optimized for NADIRUS Dobsonian telescopes, but you can also mount the filter holder to other Newtonian telescopes with a low-profile focuser (it must not protrude into the tube, neither its drawtube). Fastening to the tube is made by four screws with the distances 91 mm x 55 mm.
Filter positions:for 4x 2" filters
Material:Aluminium, black anodized
Connections:Positions 91 mm crosswise to the tube and 55 mm lengthwise to the tube
Dimensions filter rail:290 x 67 x 5 mm (LxWxH)
Base outer diameter:110 mm
Geoptik Filter Drawer without filters



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Reviews

Written by Wolfgang Rafelt
on 2016-12-29

"Für Selbstbauer sehr zu empfehlen. Leider fand ich keine Zeichnung oder Daten mit Bemaßung, was die Planung des Einbaus sicher vereinfacht hätte. So musste ich auf gut Glück konstruieren. Der Filterhalter selbst ist super und ist leichtgängig. Bei Kälte wird er etwas schwergängiger, klemmt aber nicht."