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:
Braun Irt 3020 Lens Filter Braun Ear Thermometer Lens Filter Braun Lens Filter Lf 20 Lens Filter For Braun Thermometer 1 3 To 2 3 Lens Adapter 2 3 Lens Adapter Braun Super Paxette Lens Adapter C Y Lens Adapter Electronic Lens Adapter Ring Olympus Braun Paxette Lens Mount
Canon Eos R10 Lens Mount Canon Xl H1 Lens Adapter Sony F3 Nikon Mount Cob Array Lens Adapter 10 Mm Autofocus X Mount Lens 500 Cm Lens Mount Best Fe Mount Zoom Lens Minolta Dynax 7d Lens Mount Adapter Fuji Nikon F Sony A7siii Audio Adapter