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:
Kolari Vision V4-ultra Thin Filter Legacy Lens Hoya Lens Cap Thin Filter Kolari Vision Thin Filter Legacy Lens Upgrade Thin Uv Filter For 52mm Lens Fisheye Lens Vs Fisheye Adapter Macro Adapter Vs Macro Lens Lens Vs Lens Adapter Canon Nikon Sf-210 Thin Mount Sony A7s2 Ef Mount Sony Thin Eall Mount Kdl-55hx820
3d Printed Lens Filter Holder Nikon D300s Lens Mount 30mm 1.4 Canon Mount Canon Ae-1 Lens Mount Wiki Leica R Mount Lens Leica Lenses Best E Mount Lens Adapter Nikon P510 Wireless Adapter Adapter Eos Sony E Sony Nex F3 E Mount Solar Floating Pool Filter