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:
Ef M Lens Adapter Ef S Lens Adapter Canon Ef Ef-s Lens Adapter Canon Ef/ef-s Lens Adapter Vello Auto Lens Adapter For Canon Ef/ef-s Ef Lens To T Adapter Ef To Ef Lens Adapter Ef To Ef M Lens Adapter Lens Adapter Ef-m To Ef Nikon F To Panasonic L-mount
leica M To L Adapter Canon Ef Rf Adapter Weight Sony Alpha Sel1855 E Mount Wide Angle Adapter Vs Lens Sony Alpha Wide Angle Lens A-mount Nikon Precision Mount Canada Official Pentax M42-pk Adapter Sony A58 Flash Adapter Sony Rialto Block Adapter Sony To M Mount