kfconcept
Please note: our M42 adapter ring could not be suitable for Pentax Takumar Super Takumar Carl Zeiss M42 series(aperture pin does not fully depress, small tabs sticking out), as ours depresses the aperture pin all the way down
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:
Pentax K To Q Adapter Pentax Lens Adapter For Canon Lens Adapter For Pentax Pentax Lens Mount Adapter Pentax Q Adapter K Canon Lens Pentax Adapter Asahi Pentax Lens Adapter Pentax K-1 Lens Adapter Pentax Lens To Lens Adapter Adapter Lensa Nikon Ke Olympus
Viofo Cpl Filter Lens Cover Viltrox Nikon Z Mount Canon To Panasonic Adapter Canon Eos Adapter Cost Leica S To Eos Adapter Adapt Efs Lens To Sony Mirrorless Adapted Lens For Gfx Hasselblad Lens Eos Adapter Nikon S Lens Mount Sony Adapted Lenses Metabones