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:
Canon Fl Lens Mount 5mm Rails Fisheye Lens Adapter 12 5mm Lens Mount 5mm C Mount Lens 5mm Clear Lens Mount 5mm Ef Mount Len 5mm Led Lens Mount Clear Sony E Mount 5mm Sony Zeiss E-mount 1 8 5mm Sony/zeiss E-mount 1 8/5mm
Fuji X Mount Telephoto Lens Olympus Pen Lens Mount Best 200-500mm Lens For Adapting To A7r Galaxy Note 3 Lens Adapter Mamiya Rz Lens To 645 Adapter Photojojo Wide Angle Lens Adapter 16-50mm Selp1650 E-mount Power Zoom Lens Nikon 1 Mount Type Rokinon Sony E Mount Autofocus Sony A Mount Cameras Wiki