Your cart
Close Alternative Icon


Eyepiece CPL 40mm 1.25"


40mm 1.25" Camera Projection Lens

A quality super plossl 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 T2-thread (42mm) suitable for connecting to your camera's T- ring.

Focal Length  =  40mm
Barrel Size  =  1.25"
Apparent FOV  =  45°
Eye Relief  =  31mm
Group:   =  4-elements
Filter Thread  =  M28.5 x 0.6
Camera Thread  =  M42 x 0.75

Telescope Adapter Ring M42/0.75
Diameter of 6 x M3 screw locations 54mm
Compatible Device QHY(IC)90A, QHY(IC)695A QHYCFW2-S
Suitable CCD SIZE Up to 4/3 inch
Weight 127g