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:
Hoya Cs Lens Filter 55mm Best 28mm M Mount Lens Reverse Macro Adapter Canon Macro Reverse Lens Adapter Ring Macro Camera Lens Reverse Adapter Macro Photography With Reverse Lens Adapter Reverse Macro Lens Adapter Nikon Best 28mm K Mount Lens Best Lens For Reverse Mount Macro Macro Reverse Adapter Nikon
Solar Eclipse Filter For Nikon Lens Canon Ef Lens Mount Adapter Canon M Mount Speed Booster Sony Alpha A Mount Lenses Adapter For Contax G Lens Pentax 67 Adapter Canon Olympus Pen E-pl2 Lens Mount Compatible Om2n Rokinon Cine Lens Nikon Mount Nikon T2 Mount Adapter 95mm Solar Lens Filter