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:
Contax G1 Lens Mount Canon G1 X Lens Filter Adapter Contax G1 Lens Adapter Lumix Adapter For F-lens Panasonic Lumix G1 Lens Adapter Lumix G1 Lens Mount Panasonic Dmc-g1 Lens Mount Panasonic G1 Lens Mount Panasonic Lumix Dmc-g1 Lens Mount Sony Hd Avchd Handycam Hdr-cx130 Adapter
Holga Split Image Filter Lens Set Samyang Nikon Z Mount Md-mount Lens To Canon Ef Leica R To S Adapter Metz Sca 3502 Leica Sca Adapter 600mm F Mount Lens Mitakon 35mm F 0.95 E Mount Lens Vivitar Camera Lens Mount Minolta Rokkor To Eos Adapter Sigma Mount Converter Sony