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analysis of different 2016 lots of CXB (formerly Astrodon) 3 nm H-a filters measured 97
Each set is machined to the exact curve of a specific tube
The dovetail plate is not included
Lumicon 2 Inch Comet Filter is a narrow band-pass filter (25nm)
The Armored Strip version adds a stainless steel strip that takes the abuse instead
Lumicon Female T-Thread (T2 / M42×0.75) → 2" Eyepiece Holder — Adapter D Size Dovetail analysis of different 2016 lotsLumicon Female T Thread 2" Holder Puts a 2" eyepiece or accessory onto anything that ends in a male T thread the reverse of a prime focus adapter. The Lumicon Female T Thread to 2" Adapter threads onto a male T thread (T2 M420. 75mm) and presents a 2" eyepiece holder on the other side. Use it whenever a device in your optical train terminates in a male T thread a filter selector, focuser drawtube, or imaging accessory and you want to drop a 2"
US$ 50.00
US$ 14.50
US$ 200.00
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US$ 75.00
US$ 140.00
US$ 58.00
US$ 90.00
