Features are
- 3-group, 5-element design — no Barlow lens used
- Few lens elements; all air-facing surfaces have full multi-coating for excellent light transmission (“nuke” — clarity/contrast)
- Sharpness is a key characteristic, with crisp images right to the edge of the field
- Sleeve diameter: 2-inch American standard
- Includes rubber eyecup and rubber grip belt
- Made in Japan
- MOP stands for Masuyama Ortho Plossel