Equipped with 40-60degree field of view and a nonclick stop adjustment mechanism; allow smooth transitioning between focal length; ensure to find combination of field of view and magnification that target object and seeing conditions will allow
Eyeglass wearers will find that eyepiece's long 15mm to 18mm eye relief combined with a flip down rubber eye guard ensures that even easily take advantage of many benefits provided by this eyepiece's high quality multi-coated optics and zoom capability
Threaded at top for T-adapter: Standard M42x0.75 male thread; bottom for 1.25 inch filters: Standard M28.5x0.6 female thread; enable T-thread mountable camera to photograph planets; moon and high powered terrestrial targets at broad range of focal lengths
Comfortable observation with 90 degree: Look pleasantly from above into your eyepiece; filter thread for any 1.25 inch filter and accepts standard 1.25 inch eyepieces;
Made of genuine optically processed BK7 glass; premium optical prism inside rather than mirror which makes image clear and sharp; amici prism looks as beautiful as binoculars; but you can zoom in much higher with your eyepieces;