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:
Contax G Lens Adapter Adapter For Contax G Lens Contax 645 Lens Adapter Canon T5 Vidmic Adapter Contax C Y Lens To Nikon Adapter Contax G Lens Adapter Nex Contax G1 Lens Adapter Contax Lens Adapter Sony Contax Rangefinder Lens Adapter Contax Rf Lens Adapter
Fuji Gfx To Nikon Adapter Canon Fd Mount Prime Lenses Samyang 14mm Canon Mount Fujifilm S1500 Lens Adapter Contax Lens Mount Adapter Nikon Amira B4 Lens Mount E Mount Lens Compatibility Minolta Dynax 404si Lens Mount Rokinon 12mm F2 Ncs Cs Sony E-mount Sony 24mm 1.4 A Mount