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:
Olympus Pen F Lens Adapter Olympus Pen F Lens Mount Olympus Pen Lens Mount Olympus Pen Lens Adapter Adapted Lens For Gfx M42 Lens To Pen F Adapter Ef Mount Lens For Nikon Sony E Mount 35mm F.14 Sony E Mount F.95 Sony E Mount F.98
Nikon Ftz 2 Adapter 100mm Sony E Mount New Sony E Mount Lenses Sony Mhl To Hdmi Adapter Canon Fd Mount 500mm Canon Xl 2 Ef Adapter 35mm Lens Pentax Mount L Mount Telephoto Zoom Lens Nd Ef Mft Adapter Pentax 50mm 1.7 Mount