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The Auto Extension Tube NA402 for 645-series Cameras from Mamiya attaches between the camera body and lens and allows your lens to focus closer than its normal minimum focus distance. By placing distance between your camera body and lens, focusing distance is shortened and the effect of magnifying your subject is created. Extension tubes enable macro performance for lenses not otherwise able to focus that close, and are also suited for close-up portraiture.
The NA402 is the mid-size (approximately 24 mm) of three separately available NA tubes which can be used individually or attached in any combination of the three to achieve your desired focusing result. Although compatible with all Mamiya prime lenses from 55mm on up, these extension tubes are ideally suited for the AF 80mm f/2.8 lens. Using all three tubes together with the 80mmf/2.8 will create a true macro magnification ratio of 1:1.
Extension tubes have no optical elements so do not degrade the quality of your lenses. This tube is fully automatic in that it is able to communicate all electronic functions from lens to camera including autofocus and auto exposure.
In the Box
Mamiya Auto Extension Tube NA402 for 645-series Cameras