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.
OPT 20mm Plossl Eyepiece - 1.25"
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
SKU OS-P20 Manufacturer OPT Optical Design Plossl Barrel Size 1.25" Warranty 90 Day - Covered by OPT Eyepiece Field of View - Apparent 52º 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
- Included Items
- OPT 20mm Plossl 1.25" Eyepiece
- Dust Cap
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