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 E Mount Forum Canon Teleconverter F Mount 2x Auto Teleconverter With Lens Adapter Adapt Lens To Iphone Adapted Lens With 1.4 Teleconverter Focal Teleconverter Vs Lens Adapter Sony Adapted Lens Forum Teleconverter Vs Lens Adapter Nikon Teleconverter Adapter D850 Olympus 4 3 To Sony Adapter Forum
Hasselblad Lens Mount Adapter Step-up Adapter Ring 67mm Lens To 77mm F Mount 40mm Lens M To Sl Lens Mount M12 Mount Zoom Lens Sony 50mm F1.8 E-mount Lens Flickr Sony E Mount Lens Pouch Vivitar 28mm Lens Mount Sell Nikon Mount Adapter Ftz Telecoverter For Nikon Mount