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:
Fuji X Lens Adapter Lens Adapter For Fuji Fuji X100s Lens Adapter Fuji X100t Lens Adapter Fuji Xt3 Lens Adapter Canon Fuji Lens Adapter Canon Lens Adapter For Fuji Fuji Leica Lens Adapter Fuji M Lens Adapter Sigma 28-70mm Sony E Mount
28mm L Mount Lens Sony E Mount 16mm Vs 20mm 58mm Lens Adapter Gx7 Mark Ii Sony E Mount Vs Mft Nikon G Nex Adapter Aperture Lense Mount For Nikon Nikon M-series 30mm Optics Mount 839 Nikon Z Mount Larger Pentax Smc 35-80mm F4-5.6 K Mount 17-28 E Mount Sony