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 Speed Booster Canon M Mount Speed Booster Canon Speed Booster Adapter Canon Mount F 1.2 Ef Speed Booster Lens Adapter For Fujifilm X Leica M Mount Speed Booster Ef Lens Ef M Adapter Speed Booster Metabones Speed Booster Lens Adapter Speed Booster Adapter For Mft Pentax K Mount Speed Booster
Canon To Olympus Adapter Canon 100d Lens Mount Sony A7s Canon Adapter Cs To M12 Lens Adapter C Mount Lens Rental Los Angeles Lumix Gf6 Lens Mount Panasonic Pz 4 3 Mount Lens Sigma 18-35mm F 1.8 Nikon Mount Type Lenses For Pentax 645 Mount Sony 55-300mm A Mount