TPO 12mm Plossl Eyepiece - 1.25"

TPO 12mm Plossl Eyepiece - 1.25"
Item # OS-P12
  • The Third Planet Optics 12mm Plossl Eyepiece is a great value for the amateur astronomer!
  • Fully multi-coated eyepieces includes rubber eyeguard.
  • This TPO 12mm Plossl Eyepiece has a 52º apparent field of view and 8mm of eye relief.
  • This eyepiece has a 1.25" barrel size.


TPO 12mm Plossl Eyepiece - 1.25"

The four element Plossl design is perhaps the most popular telescope eyepiece design on today's market and an all-around performer. The Third Planet Optics Plossl provides excellent image quality, good eye relief and an apparent field of view of about 52 degrees. This well manufactured Plossl will deliver high contrast and pinpoint sharpness out to the edge of the field of view.

These Plossl eyepieces are a great value for the amateur astronomer. We get them directly from the manufacturer to save you money. Each 4-element eyepiece is fully multi-coated for maximum contrast and has blackened lens edges to minimize internal reflections and the barrels are threaded to accept 1.25" filters.

The TPO 12mm Plossl Eyepiece works across all focal lengths and offers great background darkening capabilities for studying planetary nebulae, small galaxies, planetary details and lunar details.

TPO Product Number: P12

Additional Information

Additional Information

Manufacturer TPO
Optical Design Plossl
Barrel Size 1.25"
Warranty 1 Year Warranty
Eyepiece Field of View - Apparent 52º
Eyepiece Focal Length 12mm
Eyepiece Eye Relief 8mm
Eyepiece Manufacturer Series OPT Plossl
Number of Lens Elements & Groups 4 elements
Special Feature None
Comes with Dust Caps? Yes
Comes with Eye Guard? Yes

Customer Reviews 1 item(s)

Great quality for the price.
This eyepiece compares very favorably to similar oculars at more than twice the price. My only gripe is the small eye relief, but this is due to the nature of the design. I use this eyepiece often on planets when mediocre to bad seeing doesn't allow me to use my 5mm ocular. In do not notice any ghosting or other optical defects when viewing Jupiter or the Moon; it delivers a very crisp, flat image across the field of view. The build quality is also very good. I highly recommend this as part of a starter set of eyepieces, it is an excellent all around value.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Justin / (Posted on 5/26/2014)
Included Items

Included Items

  • TPO 12mm Plossl Eyepiece - 1.25"
  • Dust Caps
Questions & Answers

Product Questions

Are the eye and field lens convex or symmetric? Televue and Meade Super Plossls lens are convex and thus greatly reduces distortion.
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