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:
Mitakon Zhongyi Lens Turbo Adapter V2 Moment Lens V1 To V2 Adapter Moment Lens V2 Adapter E Mount Lens Sale Nikon 1 V2 Lens Adapter B4 Lens Adapter For Sale K Mount Lens For Sale Moment V2 Lens Mount Nikon 1 V2 F Mount Nikon T-mount Cant Focus
Lumix G7 Nd Filter Set Lens Filter For 50mm Fx Lens Gopro Hero 7 Lens Filter Nikon F Mount 70 200 Canon Mount For Sony A7 Canon 85mm Fd Mount Micro Lens Nikon Adapter 120mm C Mount Lens Rokinon 85mm F1.4 Nikon Mount Sony A7rii M Mount