The 4mm SLV Series 1.25" Eyepiece from Vixen Optics features 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.

4mm 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 it work with other brand t mounts?

A: Yes as long as the threading's are 42mm then it will work. That is correct.

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. I read that these eyepieces are parfocal, except for one. Which one would that be?

A: Parfocal with All X-Cel LX Eyepieces

Q: 4. will the neximage 10 work with my 114gt ?

A: Yes, its 100 % compatible.

Q: 5. what magnification can i expect with the pentax pf 80 ed spotting scope?

A: This zoom eyepiece is roughly a 20x to 60x power regardless of the scope it is matched to. A larger diameter objective lens of the scope will allow more light to enter the eyepiece than a smaller diameter lens. The difference will be in image brightness.I have this zoom eyepiece on a 65mm scope which I use for birding and wildlife viewing. The zoom is a big advantage for quickness in locating moving targets, and the smaller scope is light and compact to carry in the field. Larger scopes with fixed focal length eyepieces are advantages in photography.

Q: 6. How long of a cable could you put on the imager? (max distance from imager to computer)

A: The Imager comes with a 10' USB 3.0 Cable. I would say that would be the maximum, since that's what the Manufacturer includes.

Q: 7. Will this work on a Celestron regal m2 100ed?

A: Yes the Pentax SMC XF 6.5-19.5mm Zoom Eyepiece (1.25") is compatible with the Celestron Regal series spotting scopes.

Q: 8. Will this work on windows 11?

A: Celestron NexImage 10 Solar System Color Eyepiece Imager (1.25") BH #CENM10SSI • MFR #93708 will work with Windows 11

Q: 9. Will it work with Pentax PF-65 ED II (straight body) ?

A: Yes, it will

Q: 10. does this fit the Nexstar 4 se?

A: it does indeed, and it's glorious.