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:
Ef Vs Efs Lens Mount Shoten Adapter Nikon Z Techart Lm-ea7 Autofocus Lens Adapter Techart Lm-ea7 Ii Auto Focus Lens Adapter C Mount Lens Nz Shoten Pro-replacement Lens Mount For Sony E-mount Lm Digital Adapter For Nikon Diaphot 200 Sony Cassette Adapter Nz Sony E Mount Lenses Nz Sony Hdrcx240 Lm Mount
Lens Filter Step Up Ring Neewer 49mm Lens Filter And Accessory Kit Nikon D7100 Lens Mount Type Adaptador Lumix Para Canon Canon Eos Rp Body With Ef-eos-r Adapter Nikon To Canon Smart Adapter Nikon Plastic Lens Mount Replacement Veydra Lens Kit E Mount 3 Nikon 30mm Ar Mount Sony A Mount Lenses Fisheye