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Auto Bellows N

Mamiya

The Auto Bellows N is a precision close-up device with continuous magnification range. Both automatic and manual exposure control are available when used with the AE Prism Finder. It permits a wide range of magnification depending on the lens used (up to 4.35X with the 55mm lens reversed). Front tilt, rise and swing can be used creatively to control depth-of-field and plane-of-focus in critical close-up photography.

It features rack and pinion base rail, and revolving
mount for turning camera horizontally or vertically.

For maximum magnification, lens may be reversed using optional Lens Reversing Ring. Double cable release and camera mounting ring included for all 645 series cameras.

Cat. #210-240. Weight: 2.9 lbs. 1300 g.

The following chart illustrates the 80mm f/2.8 lens in the normal position. Lens may be reversed as well for some applications with the use of a Reversing Ring. Similar charts are available for all lenses.

Close-up Table for 80mm f/2.8 Lens with Auto Bellows for 645 Cameras
Extension Magnification Lens-to-subject Area covered (in.) x distance (in.) Exposure compensation
48.0mm 0.60 6.94 2.72 x 3.66 1.5
64.0mm 0.80 5.63 2.06 x 2.75 1.5
80.1mm 1.00 4.84 1.66 x 2.22 2.0
96.1mm 1.20 4.28 1.38 x 1.84 2.5
112.1mm 1.40 3.94 1.19 x 1.56 2.5
120.1mm 1.50 3.78 1.09 x 1.47 2.5
128.1mm 1.60 3.66 1.03 x 1.38 3.0
144.1mm 1.80 3.44 0.91 x 1.22 3.0
160.1mm 2.00 3.28 0.81 x 1.09 3.0
176.1mm 2.20 3.13 0.75 x 1.03 3.5
178.7mm 2.23 3.06 0.75 x 0.97 3.5

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For more information on this product, visit Mamiya's website.