This Meade 14mm waterproof Ultra Wide is an exceptional medium focal length eyepiece with a very wide 82° field of view. It is O-ring sealed and nitrogen-purged to be 100% waterproof.
This 1.25” Meade eyepiece uses seven optical elements for sharp, well-corrected performance across a very wide 82° field of view. At 15mm, its usable eye relief is quite usable with eyeglasses, and its twist-up eyecup lets you match the eye relief to your eyesight and/or eyeglass use.
The 82° field of the Meade 14mm Ultra Wide is so wide that you can’t see the field stop without moving your head from side to side, so the eyepiece seems to disappear in use. It gives you the feeling of looking through a picture window into space, rather than through a constricted tube, as with a conventional narrow field eyepiece. This unrestricted view is very impressive with fast focal ratio/short focal length scopes such as fast apo refractors or Dobsonian reflectors. A 10” f/4.5 Dobsonian reflector will have a full 1° field at 82x with this eyepiece, and a bright 3.1mm exit pupil. A 5.1” f/6 refractor will have a 1.47° field at 55x, with a 2.3mm exit pupil.
The eyepiece calculator that you'll find in the "Formulas" tab above will show you just how much magnification and field of view this eyepiece will provide with your particular telescope.
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