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:
Leica Dst 360 Adapter 90 Degree Lens Adapter Canon Xti Lens Mount Nikon Keymission 360 Mount Nikon Keymission 360 Mounts Canon Camera Adapter 360 Degree Leica 360 Prism Adapter Leica Disto 360 Adapter 360 Degree Virtual Tour Camera Lens Adapter Nikon Z6 With Ftz Adapter On 360
Polaroid Onestep 2 Lens Filter Canon To Nikon Mount Fujifilm Xt3 Canon Lens Adapter B4 To Nikon Adapter Outdoorsman Bino Adapter Leica Sony E-mount Adapter Autofocus Manual Lens 70-300mm Z Mount Lens Pentax Mirrorless Camera K Mount Sony A7 Adapter Guide Sony Np F970 Aa Battery Adapter