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:
Vivitar T Mount For Canon Leica M Lens Adapter Leica Q Lens Adapter Sony E Mount X2 Converter Leica T Lens Adapter Leica X2 Filter Adapter Canon Lens X2 Adapter Leica L Lens Adapter Leica S Lens Adapter Nikon D90 X2 Adapter
Cokin Filter Holder For 82mm Lens Nikon Dk-18 Eyepiece Adapter Sony Vmc Avm1 Multiport Adapter Sigma Canon Mount 8mm Used Canon Eos M Adapter Test Is A Canon Eos-m4 3 Adapter Nikon Z6 Lens Adapter Ef Panasonic G85 Budget Lens Vintage Adapter Nikon F Adapter Manual Nikon Ais F Mount