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:
Mamiya 645 Lens Adapter Mamiya 645 Lens Mount Mamiya 645 To Nikon F Adapter Mamiya 645 To Pentax 645 Adapter Mamiya 645 Nikon Adapter Mamiya Rz Lens Adapter Mamiya 645 Lens Mounts Mamiya 645 Mft Adapter Mamiya Pentax 645 Adapter Sony Nex Fisheye Adapter
Tamron 150-500mm Sony E Mount Leica M Adapter R Fisheye Lens Adapter Nikon Sigma Lens Nikon Mount 20 Mm Wide Lens Sigma Canon Mount Nikon 1 S1 Lens Mount Nikon 35mm Fx Mount Sony Camera Flash Adapter Sony E Mount Lenses 18-200mm Camera Solar Filter 55mm