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Fully Multi-Coated Optics: Allows maximum light transmission through the optical path for brighter images
place the Bahtinov mask in front of the main optics of your scope and take a picture to see the diffraction spike pattern produced
Machine threaded a fully blackend for maximum contrast
Tired of threading your Schmidt-Cassegrain accessories on and off
the Sky-Watcher CQ350 is an observatory-class powerhouse that is still portable enough for field use
ZWO Nikon Lens Adapter for 2" EFW Filter Wheel - EFW2-NIKON Planispheres Fully Multi-Coated Optics: Allows maximumThe ZWO EFW2 NIKON adapter was designed by ZWO in order to connect a Nikon lens with a ZWO EFW2 2" filter wheel. This short adapter takes up 14 mm of back focus and can only work with ASI cooled cameras with 12. 5 mm back focus, such as the ASI16200, ASI2400 and ASI2600. The thread of the interface is M54 and so therefore does not fit the 1. 25" EFW electronic filter wheels. HOW TO ATTACH THE ADAPTER: 1. Gather together the ASI camera, Nikon lens
