OPTOLONG UHC FILTER Mount menu Avalon Vixen GP style dovetail

Avalon Vixen GP style dovetail saddle for 45mm bars (for Linear & M-Uno mounts)

The ASI 2600MC uses the zero amp glow circuit that averts this artefact in your images

This 6kg counterweight is exclusively designed for GM2000 mounts: a precise 40mm hole offers a smooth movement on the shaft and facilitates the balancing operations

SkyWatcher Classic Dobsonians are equipped with a 2" Crayford focuser with locking screw and 1

The mount can be controlled by using the most common software packages by connecting it to a PC with a RS-232 serial port or Ethernet connection

OPTOLONG UHC FILTER Mount menu Avalon Vixen GP style dovetailThe Optolong UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of deep sky objects such as emission nebulae and supernova remnants. It rejects the typical wavelength associated to artificial light and it is highly transparent in the main emission nebula lines: OIII (496nm and 500nm), H beta (486nm), NII (654nm and 658nm), H alpha (656nm) and SII (672nm). Note: The Nikon Full Frame version of the UHC filter is not