|Brand and Model:||Orion Lanthanum 10.5mm|
|Type:||Misc Wide Angle|
|Focal Length:||10.5 mm|
|Apparent FOV:||50.0 degrees|
|Field Stop Dia.:||0.0 mm|
|Eye Relief:||20 mm|
|Description:||Our Lanthanum eyepieces boast a generous 20mm of eye relief. No more scrunching your eye up to the glass as if you were squinting through a keyhole.|
The visual quality is outstanding. One of the six to eight lens elements is made from lanthanum, a rare-earth element that eliminates visual aberrations. Add to that multi-layer coatings on every air-to-glass lens surface and you get sharp, bright, high-contrast images needed for planetary or deep-sky observing.
Each 1.25" eyepiece features rubber eyecups, barrel setscrew recess, and filter threads.