The Gehmann Zero Magnification Dioptre has been passed for use by the ISSF.  However, although these are used to correct vision problems, they do not constitute a single corrective lens under NSRA rules and therefore cannot be used in conjunction with an Eagle Eye.

NSRA Rules say:

8.4.3 A lens may be used attached to or forming part of the foresight………………………… The lens may not be used in addition to any other lens or system of lenses except a single prescribed sight-correction lens. The sight-correction lens may be either attached to the rearsight or worn by the shooter.

And: Aperture. A rearsight, including tube sights, which may, if so desired, have attached a single lens or system of lenses not containing an aiming point as a substitute for, or in addition to, prescribed spectacles.

The Gehmann Zero Magnification Dioptre isn’t a single, prescribed sight correction lens. It’s an adjustable, off the shelf, sight correction, multiple lens system and so would not be allowed in conjunction with an Eagle Eye.

It can, however, be used with a foresight that doesn’t contain and Eagle Eye.

We use cookies

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience. We do not use any cookies to collect or share personal information.
You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.