Compatible with their PF-65 and PF-65 ED II series, PF-80 series, and PF-100 series spotting scopes plus just about any telescope that accepts 1.25" eyepieces, the Pentax SMC XW 3.5mm Eyepiece 1.25"produces a high magnification for examining details, whether you use it for astronomical or terrestrial subjects.

Using low-dispersion lanthanum glass with a eight elements in five groups lens configuration and antireflection multicoatings, views through the eyepiece are crisp and bright with high resolution and minimal distortion. The spacious 70° field of view and exceptional 20mm eye relief ensure maximum comfort for long-duration use.

For Select Pentax Spotting Scopes    For Telescopes That Use 1.25" Eyepieces    Wide 70° Angle of View    Low-Dispersion Lanthanum Glass Lenses    8 Element/5 Group Lens Configuration    Produces a High Power    Long 20mm Eye Relief    Antireflection Multicoated Optics

Related Questions and Answers

Q: 1. Will this work with my old Pentax 500 spotting scope? I currently am using a Meade MA25mm eyepiece.

A: The Pentax SMC XW 10mm Eyepiece (1.25") BH #PEEP10X • MFR #70514 will work with your Pentax 500 spotting scope.

Q: 2. Durability and practicality ?

A: The SMC XF 6.5-19.5 eyepiece is very well made, with high quality optics. I have used my scope in rain and fog without any problems. The actual scope is some kind of durable plastic construction which has held up, especially with the case that allows you to open the front and back and leave the case on for added protection. My ONLY con is the eye relief is real short, I wish I had a little more space, but that being said the view is crystal clear, bright, and detailed. Hope this helps in your decision.Note: the original one I had was stolen in a home robbery and covered by insurance. I could have bought any other brand, and I re-chose getting the Pentax again.

Q: 3. I have a Celestron TrailSeeker 80 spotting scope. It came with its own 8-24 zoom eyepiece. It's fine. But would this different 8-24 eyepiece be an upgrade? Is the quality higher? If so, great. If not, I'll stick with the original.

A: The Celestron 8-24mm Zoom Eyepiece (1.25") BH #CEEPZ824 • MFR #93230 is the same eyepiece that comes with the Celestron TrailSeeker 80 20-60x80 Spotting Scope.

Q: 4. 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: 5. will this product be compatible with the NexStar 8se?

A: Have a look at your eyepieces: there should be an internal thread on the end that goes into the telescope focusser. If so the Celestron eyepiece filters will fit, in fact they will screw into most brands of 1.25 eyepieces. However, they will not fit any 2 or the older 0.965 eyepieces. Kind Regards, Ian

Q: 6. 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: 7. 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: 8. What are the eye relief and field of view for this eyepiece?

A: Field of View 60 to 42° Eye Relief 15.0 to 11.0 mm

Q: 9. Hi. Could I attach this to a Nikon D500? If so how can I do it? Thanks.

A: No, this cannot be attached to a DSLR

Q: 10. 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.