Brand: Skyoptikst
Focal length: 40mm
Interface specification: 1.25 inch (about 31.7mm)
Thread specification: m28.6 * 0.6mm
Lens material: optical glass
Body material: metal-aluminum
Eye relief:30mm
Features:
1. Fully multi-coated for crisp, sharp views.
2. Long eye relief for eyeglass wearers or without eyeglass.
3.All optical glass HD design
4.Metal Construction
Package List:
1 x A 40mm eyepiece