Svbony 1.25" 7-21mm Zoom Eyepiece - SV135 - W9105A - W9105B - W9105D

Highlights

• SV135 zoom eyepieces have a rubberized collar that provides a non-slip grip, especially helpful in cold weather and when wearing gloves 
• Sturdy anodized aluminum barrels are threaded for 1.25" filters
• Zoom from 7mm to 21mm; you can choose the right magnification for viewing
• Comfortable 16.3mm-18mm eye relief, especially handy for eyeglass wearers
• This zoom eyepiece eliminates the need to change eyepieces so you can spend more time viewing the night sky instead of fumbling in the dark when you want higher or lower magnifications.

 

Specifications

Model	SV135
Zoom Type	Linear
Focal length	7-21mm
Eye Relief	18mm - 16.3mm
Lens Design	4 groups/ 6 pcs
Interpupillary Distance	15mm
Barrel Size	1.25"
Field of view	57~40°
Lens Coating	FMC
Rubber Eye Guard	Yes
Material	Metal +Optic Glass
Color	Black
Thread Size	M28.5*0.6
Overall length	93mm
Net Weight	133g / 4.67oz