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:
39mm 85 Filter Lens Los Angeles Filter For 18-55mm Fuji Lens Canon Ef Male Mount Canon N3 Female To 3.5mm Male Adapter 39 Mm Male Lens Adapter C Y Lens Adapter Lens Ring Adapter 39mm 40.5mm 39mm Screw Lens Mount Sony Lens Mount Male Minolta Mc 39mm To Pentax K Adapter
Nikon D500 Lens Mount Type Panasonic Ag-la7200 Anamorphic Lens Adapter Leica M7 Nikon Lens Mount Adapt M42 Cine Lens Meike Lens Mk-6.5mm F2.0 Sony E-mount Minolta Sr Lens Mount Nikon D7000 Lens Mount Plastic Sony A7 Nikon Ais Adapter Sony Ttl Flash Adapter Sony E Mount Full Frame On Apsc