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Orion 20mm Sirius Plossl 1.25" Eyepiece - 08733

SKU: ORI-08733

This item is in stock and typically ships in 1 day or less.

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The Orion Sirius Plossl eyepieces are Orions best-selling line of telescope eyepieces featuring tremendous quality at an affordable price. This 20mm Orion Sirius Plossl telescope eyepiece has a wide 52 degree apparent field of view enabling extremely sharp images of impressively high contrast. This eyepiece is ideal for all types of telescopes including refractors, reflectors and catadioptric. The 4 element design of the Sirius Plossl eyepiece is the standard to which all other telescope eyepieces are judged. 


For excellent light transmission and bright views, the Sirius Plossl optical system is multi-coated. For durability and precision fit, the lenses are mounted in black-anodized aluminum housings with a 1.25” diameter chrome-plated brass barrel. In order to accept standard telescope filters the barrel is internally threaded. The eyepiece features a built-in rubber eyeguard that serves to enhance viewing by helping block out ambient light and position the eye. In addition, this 20mm Orion Sirius Plossl Eyepiece excels for moderately low power scanning of open star clusters and viewing of larger galaxies and extended nebulas. 


-20mm Eyepiece Focal Length


-52 degree Apparent Field of View


-1.25” Barrel Size


-13.0mm Eye Relief

Description
Description

The Orion Sirius Plossl eyepieces are Orions best-selling line of telescope eyepieces featuring tremendous quality at an affordable price. This 20mm Orion Sirius Plossl telescope eyepiece has a wide 52 degree apparent field of view enabling extremely sharp images of impressively high contrast. This eyepiece is ideal for all types of telescopes including refractors, reflectors and catadioptric. The 4 element design of the Sirius Plossl eyepiece is the standard to which all other telescope eyepieces are judged. 

For excellent light transmission and bright views, the Sirius Plossl optical system is multi-coated. For durability and precision fit, the lenses are mounted in black-anodized aluminum housings with a 1.25” diameter chrome-plated brass barrel. In order to accept standard telescope filters the barrel is internally threaded. The eyepiece features a built-in rubber eyeguard that serves to enhance viewing by helping block out ambient light and position the eye. In addition, this 20mm Orion Sirius Plossl Eyepiece excels for moderately low power scanning of open star clusters and viewing of larger galaxies and extended nebulas. 

-20mm Eyepiece Focal Length

-52 degree Apparent Field of View

-1.25” Barrel Size

-13.0mm Eye Relief

Specifications
Specifications
Model Number 08733
Standard or Speciality Eyepiece? Standard Eyepiece
Barrel Size 1.25"
Eyepiece Series Orion Sirius Plossl
Eye Relief 13 mm
Focal Length 20mm
Apparent Field of View 52°
Threaded for Filters? Yes, 1.25"
Number of Lens Elements 4
Field Stop (mm) 17.1 mm
Dimensions Length: 2.2" (55.88 mm), Width: 1.3" (33.02 mm)
Weight (ounces) 3 oz
Warranty Orion Limited
What's in the Box?
What's in the Box?
  • 20 mm Sirius Plossl 1.25" Eyepiece
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