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:
Mamiya Rb67 Lens Adapter Pentax 645z Lens Mount Mamiya Rb67 To Nikon Adapter Pentax 645z Lens Adapter Lens Adapter For Rb67 Lens Adapter For Rb67 Pentax Pentax 645z Lens Adapter Rx67 Mft Auf Ef Adapter Pentax 645z Hasselblad Adapter Pentax 645z Tilt Shift Adapter
Canon Powershot Lens Adapter Sony 200-600mm E Mount Lens Helios 44-2 Canon Ef Mount Viltrox Speed Booster Canon Ef E Mount M Lenses Canon Adapter Mirex Hasselblad-canon Eos Tilt Shift Adapter Fujifilm X Mount Lenses Black Friday 360 Degree Virtual Tour Camera Lens Adapter Sony Z5 Hdmi Adapter Sony Alpha E Mount Lense Filters