This night sight attachment install in front of day riflescope objective or other optical device (the field-glass, a telescope, photo/video equipment). It has small weight, that allows fix them directly on day riflescope objective (field-glass) through a transitional ring or on the provided mounts (usually Weaver standard). Installed night vision riflescope attachment Dedal-54x in front of a daytime sight does not affect the latter’s zeroing.
It is executed on high contrast technology (special calculated optical scheme and optical glasses, toughening of admissions during producing and assemblage of the lenses).