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:
5.0 Ir Filter Lens Ok For Eclipse Sony A7rii Canon Adapter Sony A7rii Lens Adapter A7rii Canon Lens Adapter Sony A7rii To Canon Adapter A7rii Lens Adapter Nikon Sony Alpha A7rii Lens Adapter A Mount Lens On A7rii Metabones Adapter For Sony A7rii Metabones Adapter Sony A7rii
Sony Alpha A5000 Lens Solar Filter Canon R Mount Cameras Petzval Lens Sony E Mount Nikon 24-200 Z Mount Tamron X Mount Lens Canon Adapter Ec C Nikon Ai Mount Cameras Nikon F Mount Reversing Ring 52mm Thread Sigma 24mm Sony E-mount Full Frame Lenses Sony Fe Mount 28mm F1.4