William Optics Ultra-Cat 108 WFID APO Petzval OTA (L-UC108) 3nm Antlia incorporates a Red+ 700-1000nm

Antlia incorporates a Red+ 700-1000nm filter into the LRGB Dark series to capture valuable signals that cannot be detected by regular LRGB filters

This tilt adjuster is mainly design for some camera has tilted sensor need to be adjust

5mm Objective Lens Sextuplet with two ED glasses Air-spaced APO Back Focus 55mm Image Circle 44mm Tube Weight 0

75 male thread)

5") Optical Tube Diameter: 222

William Optics Ultra-Cat 108 WFID APO Petzval OTA (L-UC108) 3nm Antlia incorporates a Red+ 700-1000nmIf you're in search of top tier imaging performance, this William Optics Ultra Cat 108 is the telescope for you. With 5 internal lens elements composed of high quality glass, you can expect stunningly sharp, well corrected astrophotos! As a Petzval refractor, there is no need for an additional field flattener nor backspace calculation, making camera attachment a breeze. Stars will be sharp across the entire field of view, even for medium format and