Konica AR Extension Rings Filter Type_Filter Holders Includes a quick-release plate with

Includes a quick-release plate with a standard 1/4" thread

but don't buy this for video

gear-driven mini focusing rail

with 32 channels

with light finish wear from normal use and handling

Konica AR Extension Rings Filter Type_Filter Holders Includes a quick-release plate withA set of Konica extension rings for the AR mount. This set includes front and rear lensmounts, plus three threaded tubes to fit in between. You can configure the tubes and mounts for extension between 10mm and about 62mm, and there's also a 35mm lens reversing tube which can be used with the camera side mount. If you've got a Konica AR mount camera and you like macrophotography, this is a very handy accessory. Includes original carrying pouch.