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:
Swarovski T2 Adapter Sony E-mount Swarovski T2 Adapter For Canon Ef Mount Swarovski T2 Adapter Canon Tokina 80-200mm Lens Adapter For Canon Swarovski 80 Lens Adapter Ae Mount 80 To 200 Lens Nikon 80 200 Lens Mount A7 Iii Nikon Adapter Swarovski T2 Adapter Nikon Swarovski T2 Adapter Sony
Lens Filter For Braun Thermometer Leica To Ef Adapter Fotodiox Pro Lens Adapter Sony A7c Lens Mount Zoom Lens Fuji X Mount Lightest Sony E Mount Lenses Canon Rebel Sl3 Lens Mount Canon Full Frame Camera Gps Adapter Em1 Olympus Canon Adapter Fujifilm X Mount Adapter Om