A quality wide angle Superview eyepiece with full multi-layer coating. Can be used as a normal eyepiece or to use for eyepiece projection photography it has an external extendable sheath with a removable cap. This reveals a M57 thread. Use the optional Camera Adapters for connecting to your camera (either 42T or 52T).
Focal Length = 30mm
Barrel Size = 2"
Apparent FOV = 68°
Eye Relief = 22mm
Group = 5-elements
Filter Thread = Internal thread suitable for 2" filters
Camera Thread = M57 x 0.75