Coated lens system.
Achromatic lens made of high quality silicate.
Adjustment of pupillary distance of 54–74 mm.
Lens diameter 23 mm.
Focusing /dioptre compensation adjusted individually for each eyepiece.
Ocular-side additional correction is possible, e.g. cylinder correction.
Sturdy carrier frame made from glass fibre reinforced, black plastic.
Comfortable, easily adjustable saddle bridge.
Supplied in black zippered case.
With convergence angles to suit the respective working distances.