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:
Bower Fisheye Lens Adapter Fisheye Lens Vs Fisheye Adapter Opteka Fisheye Lens Adapter Canon Af Mount Lenses Fisheye Adapter Lens For Projector Fisheye Lens Adapter 49mm Fisheye Lens Adapter 52mm Fisheye Lens Adapter For Sony Fisheye Lens Filter Adapter Universal Fisheye Lens Adapter
Need A Filter For Lens Nikon F Mount Vs G Mount Fuji Mirrorless Canon Ef Les Adapter Leica C Mount Lenses Itorex Telephoto Lens Adapter 50mm S Mount Lens Arri 2c Lens Mount Smallest F Mount Lens Nikon Adapter For Nikon Coolpix L31 50mm Binocular Solar Filter