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:
Adaptator Lumix Para Canon Board Camera Lens Adapter Cambo Lens Board Adapter Fuji Gx680 Lens Adapter Graflex Lens Board Adapter Gx680 View Camera Lens Adapter Linhof Lens Board Adapter Sinar To Linhof Lens Board Adapter Toyo Lens Board Adapter S Mount Board Lens
Olympus Omd Mark Iii Lens Filter Helios 44 2 Nikon F Mount Minolta Md Lens Adapter Drop In Lens Mount 18-135mm Sony E Mount Canon 100d Lens Mount Type Diana+ Lens Adaptor Canon Mount Tilt Shift Adapter Nikon D7000 Sony A7 Close Focus Adapter Sony Vaio Ssd Adapter