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:
Sony E Mount Teleconverter Teleconverter For Nikon F Mount Teleconverter For Nikon Z Mount Canon Teleconverter F Mount 2x Auto Teleconverter With Lens Adapter Adapted Lens With 1.4 Teleconverter Focal Teleconverter Vs Lens Adapter Teleconverter Vs Lens Adapter Forum Nikon Teleconverter Adapter D850 Sony A 7 Iii Mount
58mm Filter For 55mm Lens Best Lens Filter For Portraits P900 Leica M3 Flash Adapter Nikon Z6 Ii Adapter Nikon Z Mount Macro Commlite Adapter Canon Sony Test Sony Alpha 7r Iii Canon Sigma Adapter Nikon D3100 Lens Mount Size Low Profile Nikon T-adapter Sony X70 Lanc Adapter