Portable telescope mount with integral locator using...
Portable telescope mount with integral locator using...
Portable variable power zoom periscope
Power focusing device for a telescopic sight
Pre-assembled pivoting lens unit
Prime focus unit
Prism for ergonomic position
Protective window for optical sight
Protective window for optical sight
Radiometric calibration device and method
Range binoculars
Re-focusing mechanism for imaging system
Re-imaging converter lens apparatus and method
Real image finder
Real image mode finder and camera using the same
Real image mode finder optical system
Real image mode finder optical system
Real image mode finder optical system
Real image mode variable magnification finder optical system
Real image mode variable magnification finder optical system