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
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STARTRACKER [ India ]
EXPLORE SCIENTIFIC [ USA ]
G.S.O. [ Taiwan ]
Goto Mounts / Tripods [ U.S.A ]
BRESSER [ Germany ]
William Optics [ Taiwan ]
Founder Optics [ Taiwan ]