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:
Ef M Lens Adapter Ef S Lens Adapter Canon Ef/ef-s Lens Mount Canon Ef/ef-s Lens Adapter Vello Auto Lens Adapter For Canon Ef/ef-s Adapter For Ef S Lens Ef Lens To T Adapter Ef To Ef M Lens Adapter Lens Adapter Ef-m To Ef Contax Mm Lens Mount
Canon R10 Lens Mount Nikon Z5 Lens Mount Sony Alpha 7 E Mount Canon 300mm Zoom Lens Ring Adapter Kaligar Lens Canon At1 Adapter Fujifilm Finepix S1500 Lens Adapter Pentax 645d Lens Mount Sony E Mount Best General Purpose Lens Adaptador Lentes Nikon Para Sony Sony E Mount 20 Vs 16