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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 To Lumix Lens Adapter Lens Adapter For Lumix G7 Lumix Gf3 Lens Adapter Lumix Gh4 Lens Adapter Lumix Gx1 Lens Adapter Lumix Lx3 Lens Adapter Lumix Adapter For F-lens Panasonic Lens Adapter For Fz72 Panasonic Lumix Fz72 Lens Adapter Nikon F-c Adapter Aperture Control
C Mount Autofocus Lens Nikon Z Mount Diameter Commlite Adapter Canon M Leica M Mount Sony Ef Lens Sony Minolta Alpha Adapter Lens Adapter For Rokinon 14mm Lens Iphone 5s Slr Lens Mount Listing Of All Sony Lens E Mount Lns-1125 25mm C-mount Lens Newest Sony E-mount Lenses