Variable magnification optical system, optical apparatus...
Variable magnification optical zoom lens system
Variable magnification viewfinder
Variable magnification viewfinder
Variable numerical aperture large-field unit-magnification...
Variable optical element, optical unit, and image capturing...
Variable optical slit assembly
Variable optical-property element
Variable optical-property element and optical apparatus...
Variable optical-property element and optical apparatus...
Variable power fluid lens
Variable power lens systems for producing small images
Variable power optical system
Variable power optical system
Variable power optical system and image pickup apparatus
Variable power optical system and image-recording device
Variable power optical system and image-recording device
Variable power optical system and imaging device
Variable power optical system and imaging device
Variable power optical system for copying machine