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 Ef To Pentax K Mount Adapter 1 3 To 2 3 Lens Adapter 2 3 Lens Adapter Sigma 70-210mm F.2.8 Apo Canon Ef Mount C Y Lens Adapter Spiratone Ys 18mm F 3.2 Nikon F-mount Sigma 30 F.1.4 Sony A Mount Sony E Mount 35mm F.14 Sony E Mount F.95 Sony E Mount F.98
Lens Filter For Leica D Lux 109 Canon T70 Lens Mount Ef M Lens Adapter Mamiya Press Lens Adapter Canon 50mm F/1.4 Fd Mount Lens Swarovski 80 Lens Adapter Ats K1000 Camera Lens Mount Aps C F Mount Nikon Nikon M308 Scooe Mount Tamron 150 600 For.sony.e Mount