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:
Canon To Lumix Lens Adapter Lens Adapter For Lumix G7 Tamron Sony Fe Mount Lumix Gf3 Lens Adapter Lumix Gh4 Lens Adapter Lumix Gx1 Lens Adapter Lumix Lx3 Lens Adapter Dmw La8 Lens Adapter For Panasonic Fz80 Lumix Adapter For F-lens Nikon Converter Adapter Fz80
Iphone 12 Lens Adapter Sony 28mm F2 E-mount Pentax 645z Lens Adapter Nikon Keymission 360 Mounts Canon 24-70 First Generation On E-mount Canon Fd Mount Autofocus Leica T Adapter Canon Fujifilm X Pro1 Lens Adapter Lens Adapter Af Chip Fixed Aperture Zoom Lens A Mount