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:
Lens Filter Kit For Leica M3 Canon M3 Lens Adapter Leica M3 Flash Adapter Leica M3 Lens Mount Leica M3 Lens Adapter Rolleiflex To Leica Lens Adapter Leica M3 A Mount Eos M3 Lens Adapter Rolleiflex Sl66 Lens Adapter Sony Psp Memory Stick Adapter
Nikon N2000 Lens Mount Sigma 135mm Sony E Mount Rokinon 10mm Sony E Mount Canon 650d M42 Adapter Adapter Lens For Sony Z150 180x Zoom C Mount Lens 35mm F1.6 E-mount Len Sony A7s C Mount Lens On Bmpcc Sony Fz To Nikon Adapter Sony La-ea4 Adapter Test