The Vixen Optics 9mm SLV 1.25" Eyepiece for Astronomyfrom Vixen Optics 9mm SLV 1.25" Eyepiece for Astronomyfeatures 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.

9mm 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. Will this work on an Meade ETX 70 focuser?

A: It will not.

Q: 2. Does anyone know if this eyepiece is usable with the DSLR camera adapter? I'm noticing the lenses that work with this are somewhat limited...

A: I don't think this is usuable with a camera adapter but I know that Baeder makes a line that allow that function

Q: 3. Can it fit on a celestron astromaster 114eq?

A: Yes this eyepiece can fit onto that scope since it takes a 1.25 Eyepiece opening.

Q: 4. Is the eye cup removable and is there thread under the eyecup?

A: No, the eye cup is not removable and there is no threads. Sincerely, Garrett at Celestron

Q: 5. 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: 6. 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: 7. What is the diameter of the opening in the eyepiece 2.3mm that I can peek through? 2.3mm or ?

A: It is about 0.9 (23mm)

Q: 8. Can this be used with Celestron 102 AZ telescope ?

A: Yes, the Celestron X-Cel LX 7mm Eyepiece (1.25"), can be used with the Celestron 102 AZ telescope.

Q: 9. Is this eyepiece threaded at 42mm on the top to attach cameras like the XW eyepieces are?

A: The Pentax SMC 8-24mm Zoom Eyepiece (1.25") BH #PEEP2060X • MFR #70509 does no have any threads for additional add on.

Q: 10. 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