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 6 Lens Adapter Mamiya 7 Lens Adapter Mamiya Sekor Lens Mount M48 Sony E Mount Mamiya To Canon Lens Adapter Mamiya Sekor Lens Adapter Sx 420 2x2 Telephoto Lens Adapter Mamiya Sekor C Lens Mount Nikon Sx 1 Adapter Ring Mamiya Sekor M42 To Nikon F Mount
Lens Filter For Dji Spark E Mount Adapter Sony Tamron Z Mount Lens Canon 70-200mm F/2.8 L Usm Ef-mount Lens Minolta Sony E Mount Adapter Nikon D3100 Wireless Adapter Canon Lenses Nikon Adapter C Mount Lens Compatibility List Ricoh M Mount Lens 32mm Sony E-mount Zeiss