The Vixen Optics 25mm SLV 1.25" Eyepiecefrom Vixen Optics 25mm SLV 1.25" Eyepiecefeatures a 20mm eye relief with a twist-up eyecup for comfortable viewing with or without eyeglasses. Designed with seven elements in four groups, the fully multicoated optics minimizes light reflection for bright and sharp images. Its all-metal body has a 1.25" aluminum barrel, with an anti-roll rubberized grip.

25mm Focal Length    20mm Eye Relief    Fully Multicoated    Twist-Up Eyecup    Anti-Roll Body    7-Elements, 4-Groups    1.25" Aluminum Barrel

Related Questions and Answers

Q: 1. What magnification would this be on a 100mm m2 Celestron spotting scope?

A: 540mm focal length divided by 18mm eyepiece = 30x Sincerely, Garrett at Celestron

Q: 2. I have a Pentax 65 ED II spotting scope and Pentax SMC XW 10mm eyepiece. If I wanted a greater field of view, should I get a bigger eyepiece 20mm or smaller one 5mm?

A: Magnification in telescopes and spotting scopes is calculated by division. So a 20mm eyepiece will have a greater angle of view than a 10mm or 5mm.

Q: 3. If I buy this from B&H is the Celestron warranty valid in Canada?

A: Yes this warranty is valid to U.S.A. and Canadian customers who have purchased this product from an authorized Celestron dealer in the U.S.A. or Canada.

Q: 4. Will it work with Pentax PF-65 ED II (straight body) ?

A: Yes, it will

Q: 5. Hi, is the top of the eye cup moveable from the position show in the photos on this page? Does anyonme know what distance of eye relief is possible withis range? Thanks

A: Eye Relief 16.0 mm Retractable Twist-Up Eyecup

Q: 6. Some reviewers say, if you get this eyepiece with PF-65EDA, it doesn't fit into the provided case for the scope. Is that right?

A: The case included with the Pentax PF-65EDAII 65mm Spotting Scope was designed to be used with the open back or fully closed depending on the size of the eyepiece attach to the scope. You would not be able to fully closed the bag when attaching Pentax SMC 8-24mm Zoom Eyepiece. The lenght of the case on the outer curve is 16.5''. The case has 2 zippers, 1 will give you access to the tripod mount. The second one will allow access to mount your eyepiece.

Q: 7. i have a range of spotting scopes and have just bought a televue 85 scope i want to see the birds clearly that my 82 leica 65 leica and 65 vanguard can't at long range so this eyepiece only gives me the same as them am i correct in that ?

A: Well it depends on the Focal Length of your scope. That is what determines the power of this eyepiece technically. You take the Focal Length of your Scope and divide it by the Millimeter of the Eyepiece.

Q: 8. Will this fit and focus on a Celestron regal m2 100ed?

A: Yes the Pentax SMC XW 3.5mm Wide Angle Eyepiece (1.25") is compatible with the Celestron Regal series spotting scopes.

Q: 9. Can it be used with Celestron NexStar 8SE 203mm f/10 Schmidt-Cassegrain GoTo Telescope?

A: Yes, the Celestron X-Cel LX 7mm Eyepiece (1.25"), can be be used with the Celestron NexStar 8SE 203mm f/10 Schmidt-Cassegrain GoTo Telescope.

Q: 10. I have a Polaris 114eq-d. Will this eye piece adapter work to convert it to 1.5?It has the 1.5 hole. Just don't know about the threads matching. Thanks

A: Yes, we are using this currently on the same model I believe. and it works great!