Optical correction without maginification
The target picture size remains equal and clear throughout the entire dioptric adjustment range of +/- 5 dpt.
A multi-lens optical system using a highly refractive type of glass makes it possible to correct spherical defective vision without having any optical magnification.
ISSF approval pending
Turn your Gehmann iris into an optical correction iris
Attaches to any modern Gehmann iris with detachable thread (not 510)
-5 to +5 optical correction