SVBONY 1.25" Telescope Zoom Eyepieces 7-21mm/8-24mm/10-30mm FMC Fully Metal

Model
SV135
SV170
SV171
Focal length
7-21mm
10-30mm
8-24mm
Eye Relief
18mm – 16.3mm
17-18.5mm
18-19.5mm
Zoon Type
Linear
Lens structure
6PCS / 4group
5 -Elements/-3Groups
7-Elements/4-Groups
Interpupillary Dist.
15mm
Barrel Size
1.25″
1.25″
1.25″
Field of view
57° ~ 40°
33°-51°
38°-56°
Coatings
Fully Multi-Coated-Green
Fully Multi-Coated
Fully Multi-Coated
Rubber Eye Guard
Yes
Blackened Lens Edges
Yes
Yes
Barrel Safety Recess
Yes
Yes
Eyecups
Meterial
Metal
Metal
Metal
Eyecups
Twist-Up
Twist-Up
Thread Size
M28.5*0.6
M28.5 x 0.6
M28.5 x 0.6
Net Weight
133g / 4.67oz
198g / 6.98oz / 0.44lb
300g / 10.58oz / 0.66lb
7mm to 21mm
Features:
Fully multi-coated Premium eyepiece zooms to any focal length between 7 mm and 21mm
Zoom from low to high power in an instant with this versatile eyepiece
Compatible with any telescope that accepts 1.25î eyepieces
6 -Element 4-Group premium optical design
Comfortable 18mm – 16.3mm eye relief more comfortable, especially for eyeglass wearers
Package Includes:
SVBONY SV135 7-21mm 1.25 inch Eyepiece
Lens Covers (Objective and Eyepiece)
Lens Cleaning Cloth
10mm-30mm
Features
:
SVBONY super-wide angle 1.25″ zoom eyepiece.
The zoom eyepiece allows you to change magnification power without swapping out eyepieces.
5-Elements / 3-groups made of high index glass deliver sharp, high contrast vistas.
A simple twist of the zoom eyepiece housing changes the focal length from 30mm to 10mm, providing a variety of viewing magnification powers.
Exceptionally long 17mm-18.5mm eye relief range allows eyeglass wearers to enjoy the entire field of view without needing to remove their glasses.
Sleek black barrel with safety undercut to reduce the possibility of the eyepiece slipping out of the focuser or diagonal.
Blackened lens edges, anti-reflection threads for maximum contrast.
Package Includes
SV170 Black 1.25in 10-30mm zoom eyepiece
Two Rubber Dust cover
Mirror Cloth
8mm-24mm Zoom
Features
:
SVBONY Super-wide Angle 1.25″ 8mm-24mm zoom eyepiece.
The zoom eyepiece allows you to change magnification power without swapping out eyepieces.
7-Elements / 4-groups made of high index glass deliver sharp, high contrast vistas.
A simple twist of the zoom eyepiece housing changes the focal length from 24mm to 8mm, providing a variety of viewing magnification powers.
Exceptionally long 18mm-19.5mm eye relief range allows eyeglass wearers to enjoy the entire field of view without needing to remove their glasses.
Sleek black barrel with safety undercut to reduce the possibility of the eyepiece slipping out of the focuser or diagonal.
Blackened lens edges, anti-reflection threads for maximum contrast.
Package Includes
SV171 Black 1.25in 8-24mm Zoom Eyepiece
Two Rubber Dust Cover
Mirror Cloth
about svbony