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:
La Dc58k Lens Adapter La Ea4 Lens Adapter Canon La-dc58l Lens Adapter Canon Lens Adapter La-dc58c Conversion Lens Adapter La Dc52g Conversion Lens Adapter La Dc58g La Dc58e Lens Adapter La Ea3 Lens Adapter Lens Adapter La Dc58l 18mm Sony Fe Mount Manual
49mm Filter For 50mm Lens Uv Or Clear Lens Filter Anamorphic Lens Pl Mount Canon Mount 500mm Lens Panasonic Gh3 Canon Lens Adapter Leica R Lenses Pl Mount Pentax Asahi Spotmatic Sp Lens Mount Thorlabs Adapter Nikon Filter Nikon Z Mount Budget Lenses Samyang 14mm Sony Fe Mount