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:
Sony Adapter La Ea4 Sony La Ea4 Lens Adapter Fujifilm Medium Format Lens Mount La-ea4 A-mount Lens Adapter La-ea4 Lens Mount Adapters Sony La-ea4 A-mount Lens Adapter Sony Adapter La Ea4 Test Sony La Ea4 Adapter Price Sony La Ea4 Objektiv Adapter Sony La-ea4 Adapter Test
Hoya Uv Lens Filter 58mm Kalt Fog 3 55mm Lens Filter Ef Lens With Filter Thread Of 46mm Camera Lens Hood Vs Uv Filter Sony A Mount Camera List Manual Focus Leica M-mount Lens Olymplus Msnual Lens To Nikon Mount Adapter Raynox Dcr-250 Macro Lens Adapter T Ring T Adapter Nikon D400 Metabone Adapter Sony A7