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:
Adapting Projector Lens To Camera Adapting M42 Lens On Canon Fujifilm Gfx 50s Adapter Adapting Aero Lens For Photography Adapting Any Lens To Any Camera Adapting Lens Pentax Q Adapting Nikon Lens To Pentax Adapting Nikon Lens To Sony Adapting Projector Lens To M42 Beaulieu 4008 Lens Adapters
Cinemorph Lens Filter By Vid-atlantic Laowa 15mm Sony E Mount Canon 7 Lens Mount Fisheye Lens Adapter Nikon Nikon 105mm Z Mount Nikon D90 Wireless Adapter Sony A Mount 2018 Leica Summar Lens Adapter Nikon Lens Mount Replacement Female Sony Alpha A6400 Lense Mount