StarField M54 Male to C/CS Male Adapter - ADM54MCM Mirror Diagonals 25 is a favorite among

25 is a favorite among astro imagers and discerning visual observers with it offering 33% more light gathering than an 8" model

the user will have to drill a hole in the plastic case of the Telrad unit to install the shaft of the potentiometer which is part of this product

25" Variable Projection to T-Ring Adapter

25" barreled accessories without marring and fiddling with small screws in the dark

StarField M54 Male to C/CS Male Adapter - ADM54MCM Mirror Diagonals 25 is a favorite amongC Mount Adapter for FW5200 and FW8125 Adapter M54 Male to C Mount Male M54 Male threads are M54 x 0. 75 x 3. 5mm C Mount threads are 1" x 32TPI x 10mm Overall height of 12mm Internally threaded to reduce reflections Used for filter wheels, webcam and other small format cameras