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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 Lens Adapter For Screw Lens Adapter Adjustment Screw M42 Screw Lens Adapter Nikon Screw Lens Adapter Screw In Macro Lens Adapter Screw To Bayonet Lens Adapter Screw On Lens Mount Nikon F-c Adapter Screw Sony Screw On Adapter Sony Camera Accessories E Mount
Lens Uv Filter Or Not Pentax To Olympus Lens Adapter Sigma 10-20mm Sony E Mount Fujifilm X70 Adapter Ring Adapting Leica M Lenses To Sigma Fp Datalogic 6mm C-mount Vision Lens Eva 1 Lens Mount Nikon Mount 135mm F2.8 Sigma 24-70mm Sony Mount Sony Fe Mount Lenses 2017