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:
Nikon F To Sigma Sa Adapter Sigma Sa To Sony E Mount Adapter Focal Reducer Speed Booster Adapter Canon Sigma Sa Lens Mouny Adapter Sigma Sa Lens Olympus Adapter Sigma Sa Lens Mount Sigma Sa-7 Lens Mount Jtat Sigma Sa Nikon Adapter Pentax K To Sigma Sa Adapter Sigma Sa Pentax K Mount
Nikon 52mm Close-up Lens Filter Nikon F Mount Sigma Fujifilm Xt5 Lens Mount Canon Ef Mount And Nikon F Fx Canon Fd Lens To Fujifilm X Mount Vintage Lense Mount For Canon Canon R5c Audio Adapter Leica Pl Mount Camera Nikon Z Mount Telephoto Lens Sony E Mount Lenses And Camera Bodies