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:
2 3 Lens Adapter Sigma 70-210mm F.2.8 Apo Canon Ef Mount C Y Lens Adapter Zeiss Cp.2 15mm T2.9 Mft Mount Lens Zeiss Cp.2 50mm T2.1 Ef Mount Lens Zeiss Cp.3 35mm T2.1 E Mount Lens Zeiss Cp.3 Lens Inforamtion Ef Mount Zeiss Cz.2 70-200mm T2.9 Ef Mount Lens Pentax Q C Mount Lenses Sigma 30 F.1.4 Sony A Mount
Polarizer R Mrc Cpl Lens Filter Canon 70d Ef Mount Canon Cn-e Zoom Lens 30-105 Pl Mount Mc 11 Adapter With Canon Ef Eos R Lens Adapter Problems With Using Lens Adapters Fixed Focal Length Lens C-mount Nikon F Fx Smart Af Adapter Pentax K Mounts Wiki Sony E Mount Tamron 10-24