Mamiya extension tubes are precision machined for close-up and macro photography. They are fully meter coupled for automatic or manual exposure. The three automatic tubes can be used individually or in any combination. The Auto Extension Tubes are coupled with the AF lens apertures and must be used in the manual focus mode. May be used with all lenses from 55mm, except zooms. Some vignetting may occur with lenses 150mm and up.
Auto Extension Tube NA403 F/645AF (Number 3)