The Vixen GLH20D 14x/20x/27x Wide Angle Spotting Scope Eyepiece is a fantastic choice amongst the fixed-magnification eyepieces for Vixen Aroma and Geoma 52mm, 67mm, & 82mm spotting scopes.It can be easily exchanged in the field with other Vixen eyepieces without disturbing wildlife.The optics of your GLH20D eyepiece have extensive full multi coatings on every optical surface and a turning-style eyecup. It has plenty of eye relief for digiscoping, and a family of dedicated accessories for the task.When used with the larger Geoma 67/82 spotting scopes, this awesome fixed magnification eyepiece provides a sweeping 72 apparent field of view, immersing you into the environment and making you feel like you're right there with your subject, instead of looking at it down a tube.Specifications:- Magnification: 14x with 52mm scopes, 20x with 67mm scopes, 27x with 82mm scopes- Angle of view: 3.3 with 52mm scopes, 3.6 with 67mm scopes, 2.6 with 82mm scopes- Field of view (@ 1000 m): 58m with 52mm scopes, 54m with 67mm scopes, 40m with 82mm scopes- Exit pupil diameter: 3.7mm with 52mm scopes, 3.3mm with 67mm scopes, 3.0mm with 82mm scopes- Eye relief: 18mm- Relative brightness: 13.8 with 52mm scopes, 11.2 with 67mm scopes, 9.2 with 82mm scopes- Twilight factor: 27.0 with 52mm scopes, 36.6 with 67mm scopes, 47.1 with 82mm scopes- Weatherproofing: None- Dimensions (WxH): 46 x 64mm- Weight: 160gIn the Box:1x Vixen Eyepiece GLH20D WideModel: VX19011