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:
Contax G2 Lens Adapter Hp Reverb G2 Prescription Lens Adapter Contax G2 Lens Mount Lumix Gf3 Lens Adapter Contax G2 Lens Adapter Canon Filter Adapter For Canon G5x Lumix Adapter For F-lens Panasonic G2 Lens Adapter Lumix G2 Lens Mount Panasonic G2 Lens Mount
Vivitar Series 1 Hd Cpl Lens Filter Filter For Nikon 18 55mm Lens M42 Nikon F Adapter Helios 44 2 Model Canon Mount Adapter Canon Inkjet Mp550 Adapter Using Adapter For Different Lens Fuji X Pro2 Lens Mount Red One Mx Lens Mount Rent Sigma 20mm 1.4 Art Nikon Mount Macro Adapter Sony Rx10 Ii