Auto Extension Tubes Mamiya extension tubes are precision machined for close-up and macrophotography. They are fully meter coupled for automatic or manual exposure. The three automatic tubes can be used individually or in any combination. May be used with all lenses from 55mm, except zooms. Some vignetting may occur with lenses 150 mm and up.

80mm f/2.8 at closest focus

80mm f/2.8 with No. 1

80mm f/2.8 with No. 2

80mm f/2.8 with No. 1, 2 & 38

No 1 = 11.8mm extension - Cat. #210-250
No. 2 = 23.6mm extension - Cat. #210-251
No. 3S = 35.4mm extension - Cat. #210-252

Fashion, beauty, portrait, nature and table top photographers at times require closer than normal focusing ability for tight head shots or revealing small details. This illustration demonstrates the dramatic effect possible with the addition of an Extension Tube to a popular lens.

150mm f/2.8 lens

150mm f/2.8 lens with No. 2 Extension Tube

Slight vignetting may be visible with some lenses depending on lens distance, aperture and background.


Auto Macro Spacer for 80mm f/4N

Designed for the 80mm f/4N Macro Lens only, the Auto Macro Spacer extends the focusing range from 1/2 life-size to full life size (1:1). Features diaphragm automation and meter coupling.
Cat. #210-253. Weight: 4.2 oz., 120 g.



Close-up Table for Extension Tubes

Click here to view a table which shows important data on the use of lenses and extension tubes. The table shows the image area covered, subject distance and magnification ratios, with 6 popular lens/extension tube combinations.


Extended Lens Connector Cable

Coiled cord for connecting Leaf Shutter Lenses when mounted on Extension Tubes to Power Drive Grip 2.
Cat. #211-437


Auto Bellows N

The Auto Bellows N is a precision close-up device with continuous magnification range. Both automatic and manual exposure control is 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.) 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

Camera Mounting Ring

To attach older model Bellows to 645 Pro & Super camera.
Cat. #211-251




Reversing Rings for Auto Bellows N

Permits reverse lens mounting for maximum magnification with bellows focusing. Can not mount to camera directly.
Cat. #210-243 with 58mm filter thread.
Cat. #210-244 with 67mm filter thread.



Connecting Rings

To attach 645 Bellows Lens Hood or threaded filters to back of reversed lens to eliminate flare-producing stray light.
Cat. #210-245 to attach 58mm accessories.
Cat. #210-246 to attach 67mm accessories.