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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:
Normal Filter Lens For Minolta 500mm Reflex Mamiya 6 Lens Adapter Mamiya 645 Lens Adapter Mamiya 7 Lens Adapter Mamiya 7 Lens To Sony E Adapter Mamiya Press Lens Adapter Mamiya To Canon Lens Adapter Mamiya Rz67 Lens Adapter Mamiya Lens Adapter Canon Mamiya 7 Ii Lens Mount
Nikon D3400 18mm 55mm Lens Filter Uv Filter For Nikon 18 140mm Lens Leica Sl Mount Lenses 2 Inch T-adapter Nikon Nikon's Wu 1a Mobile Adapter Best Lens Adapter For Gh5 Samsung Nx1 Lens Adapter Robot Royal Lens Mount V Mount In Lens Shutter Tussenringen Sony E Mount