kfconcept
If your camera indicated "lens is not properly installed", please modify the camera menu settings. Usually called the "release the shutter the lens is not installed", you can modify the settings to allow. Specifically refer to the camera manual.Following are some examples:
Range Hood Filter Lens 1.5 X 12 1.5 Close Up Filter 35mm Lens Canon Mf3010 Wireless Adapter Aivascope 1.5 X Anamorphic Lens Adapter Aivascope 1.5x Anamorphic Lens Adapter Canon 35 1.5 M Mount Canon T1i 1.5 Adapter T Adapter Canon To 1.5 Invc 1.5 Inch Lens Mount Jupter-3 50mm F 1.5 Adapter Nikon
Nd Filter Kit Fuji Lens Series V Lens Filter Adapter Kolari Vision Ir Chrome Lens Filter Nikon Fm10 Lens Mount Sony Fs5 Canon Lens Adapter E Mount G Lens Close Focus Adapter For Leica Contax To Mft Adapter Fotodiox M42 To Pentax Adapter Objectif Macro Sony E Mount