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:
Ulanzi Anamorphic Lens Nd Filter Ulanzi Anamorphic Lens 52mm Filter Adapter Ulanzi Dof Adapter Canon Ulanzi Dof Adapter With Sony E Mount Canon Ef 28-135mm F 3.5-5.6 Dof Adapter Beastgrip Dof Lens Adapter Iphone Turtleback Dof Dslr Lens Mount Beastgrip Dof Adapter Mk2 Sony E Sony Hdr Fx1 Dof Adapter Sony E Mount Rumors 2016
C Mount Fisheye Lens Tamron Lens Ef Mount Ac L200 Adapter Sony Canon Ef E Mount Loose Connection D850 Lens Mount Nikon Wireless Adapter Keeps Disconnecting Sigma 170-500mm F5-6.3 Apo Nikon Mount Mhl Adapter For Sony Xperia Z Sony Receiver Ipod Adapter Solar Filter Full Aperture