Description To check the target during photography Since the optical path can be changed with one-touch operation, you can quickly change to photography from the star watching with the naked eye. T-ring (N) screws are included as standard equipment. Specs Attachment Attached to 50.8mm visual back. Accepts two 31.7mm eyepieces. Optical Path Length 119mm Weight […]

Description A prism suitable for astronomical observation near the zenith This 90 degree diagonal prism allows viewing at comfortable angles. Specs Visual back diameter 31.7 mm Diameter of usable eyepiece 31.7mm Optical path length 64mm Weight 124g Note Not usable on reflectors, Can not be used with flip mirror Warranty Vixen warranties its products to […]