Thumbs Up EP-10S- Black Gifts_For the M Photographer Optical Design : Number of

Optical Design : Number of lenses / groups 14/11

This optic is also equipped with a long 20mm eye relief and click-stop eyecups that twist up to create a comfortable viewing distance for almost any observer

8 aperture stops

extendable by rotating Dimension and weight:  Length 47 mm  Largest diameter approx

On the other hand

Thumbs Up EP-10S- Black Gifts_For the M Photographer Optical Design : Number ofThis is a demonstration store. You can purchase products like this from Leica Store Miami. The Thumbs Up EP 10S is designed for the M (Typ 240), M P (Typ 240), and M Monochrom (Typ 246). Thumbs Up EP 10 S (M240) has a ergonomic profile. The thumb rest is angled at 22 degrees, and this shape distributes the pressure from your thumb more uniformly. This refinement allows you to hold your camera extremely rigidly, yet with great comfort. Thumbs Up EP 10S