Sharpstar 2" Triplet 0.95x Reducer / Coma Corrector for f/3-f/6 Newtonian Reflectors with M48 Thread
Sharpstar 2" 0.95× coma corrector can be applied to most marketable Newtonian reflective astrographs. It’s of high quality and easy to use. Sharpstar 2" 0.95× coma corrector is designed for APS-C imaging circles(28mm), suitable for Newtonian reflectors with focal ratio between f/3 and f/6, and aperture size from 150mm to 600mm. The reduction factor is 0.95×, thus it can reduce the original f/4, f/5 and f/6 respectively to f/3.8, f/4.75 and f/5.7, effectively shortening the exposure time. Besides, it can improve the star shapes. The diameter of stars in the center of the field can be limited within 10um.
This is the stainless steel counterweight Extension Bar supplied as standard with Skywatcher NEQ6 mounts. Enables you to balance telescopes up to 10″ without excessive counterbalance weight. The polished shaft screws onto the existing counterweight shaft extending it’s length 18.5 cm (7.3″). The extension is 18mm in diameter with an M12 thread.
Didn't imagine it would be so big. This is some serious machine-worked piece and easy to adapt to any tripod with multiple configuration options. The price was a bit high but the product is well worth it as you will only buy on in your life time.