OPT 20mm Plossl Eyepiece - 1.25"

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OPT 20mm Plossl Eyepiece - 1.25"
Item # OS-P20
  • The OPT 20mm Plossl Eyepiece is a great value for the amateur astronomer!
  • Fully multicoated and includes a rubber eyeguard.
  • The OPT 20mm Plossl Eyepiece has a 52 Apparent Field of View and 20mm of Eye Relief.
  • This is a 1.25" Barrel Size.


OPT 20mm 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 OPT 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 reflectionsand the barrels are threaded to accept 1.25" filters.

The OPT 20mm Plossl Eyepiece is a great mid-range magnification for all focal lengths and will help resolve globular clusters, galaxy details and spot planetary nebulae!

OPT Product Number: OS-P20
Additional Information

Additional Information

Manufacturer OPT
Optical Design Plossl
Barrel Size 1.25"
Warranty 90 Day - Covered by OPT
Eyepiece Field of View - Apparent 52ยบ
Eyepiece Focal Length 20mm
Eyepiece Eye Relief 20mm
Eyepiece Manufacturer Series OPT Plossl
Eyepiece Weight Not supplied by manufacturer
Field Stop Not supplied by manufacturer
Number of Lens Elements & Groups 4 elements
Comes with Dust Caps? Yes
Comes with Eye Guard? Yes

Customer Reviews 1 item(s)

Good value
Bought this as a grab-n-go eyepiece to always be handy with my grab-n-go scope for those times I really want to be quick and just have the scope in one hand and my observing chair in the other.
The stats claim 20mm of eye relief, I'd say it was a little less than that but still comfortable. The image has very acceptable sharpness on-axis and really isn't bad off-axis, even in my F6 scope. The image does get a little dim toward the edge but at this pricepoint I hope one isn't expecting perfection.
Overall, I'm happy. It's a good value.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Mike / (Posted on 9/30/2008)
Included Items

Included Items

  • OPT 20mm Plossl 1.25" Eyepiece
  • Dust Cap
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