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:
Fujifilm X-t20 Lens Mount K Mount Zoom Lens Adapting Canon Ef Lenses To Fujifilm X-t20 Fujifilm X-t20 Canon Ef Lense Adapter Fujifilm Finepix Lens Adapter Fujifilm Leica Lens Adapter Fujifilm Lens Filter Adapter Fujifilm S2950 Lens Adapter X-t20 With M Mount Lens Fuji X-t20 Nikon F Mount Lenses
8 Point Star Lens Filter Polarizing Filter For Xenvo Lens Canon L Mount Lenses Adaptador Canon A Sony E E Mount Wildlife Lens Canon Ef-s Mount Diameter Adapter Canon Eos Nikon Canon Adapter For Canon Full Frame 77mm Lens Adapter That Allows Morel Ight Pentax M42 Pk Adapter