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Abbreviations

Model history (2)

Specification

Sources of data

• Manufacturer's technical data.
• Mamiya RZ67 Professional system accessories chart.
• Mamiya RZ67 Pro II major accessories booklet.
• Mamiya-Sekor Z interchangeable lenses for RZ67 Professional instructions.
• Mamiya RZ67 Professional booklet (PUB. 2012).
• Mamiya RZ67 Professional II booklet (PUB. 2212).
• Mamiya RZ67 Professional IID booklet (PUB. 2212).
• Mamiya medium format cameras booklet.
• Mamiya medium format cameras booklet (PUB. 9012).
• Mamiya medium format cameras booklet (PUB. 9022).

Manufacturer description #1

The 75mm f/4.5 Shift is a special application lens for perspective control. It features a unique wide field coverage and perspective control shift mechanism in rotating mount, allowing the photographer to maintain proper linear perspective, identical to PC shift lenses for 35mm cameras. Applications include precise perspective for architectural or industrial rendering or table top photography.

Manufacturer description #2

The Shift 75mm lens provides versatile perspective control to the photographer to correct converging parallel elements within the image, or, conversely, to exaggerate perspective shifts to achieve special effects. It offers a maximum 20mm shift in either vertical or horizontal orientation, 17mm at angular orientation, and can be rotated through 360 degrees in 10-degree click stops.

Shifting the lens:

1. By rotating the Shift Control Knob, the lens can be moved parallel to the film plane, to the right or left, up to a maximum of 20mm.

2. The lens can also be rotated on its optical axis to the right or left up to 90 degrees. Click-stops are provided at 10-degree intervals. The lens locks at each click-stop. To change the angle of rotation, press and hold in the Rotation Lock Button and rotate the lens to the desired position. The lens can be rotated to and used at positions between click-stops; however, it will not lock in place at such a time.

3. A maximum vertical or horizontal shift of 20mm is possible, regardless of whether the revolving back is set for the vertical or horizontal format.

Whenever the lens is rotated (10-80 degrees) for a diagonal shift, the maximum shift possible is 17mm. This maximum limit of 17mm is indicated on the Shift Scale by white lines. Shifting the lens beyond this point will result in image cut-off at the edge of the corner opposite that of the shift; therefore, excercise care not to exceed the maximum limit (17mm) of a diagonal shift.

When the lens is shifted 17mm or more vertically or horizontally, depending upon the direction of the shift and the degree of bellows extension, a slight amount of cutoff of the image may occur at the shorter edge of the negative or transparency; however, the actual cutoff of the film will not appear in the viewfinder since the cutoff occurs only outside of the field of the viewfinder image.

Downward shifts of 15mm or more may result in cutoff of the upper portion of the viewfinder image. As this is caused by mirror cutoff, not vignetting, the image on the film is unaffected.

Mamiya-Sekor Z series

The first generation of lenses designed for Mamiya RZ67 series medium format 6x7 SLR cameras. Introduced with the Mamiya RZ67 Professional in 1982.

• Electronically controlled Seiko #1 leaf shutter;
• All shutter speeds up to 1/400 sec. synchronized automatically for electronic flash;
• Fully automatic diaphragm, aperture adjustments initially in full-stop increments, later modified by adding half stops (indicated by the letter "W" in the lens name);
• Multi-layer anti-reflection coating;
• Standardized 77mm filter thread mount for optimized handling with accessories (except the 37/4.5 fisheye, 75/4.5 shift and 500/8 lenses).

From the editor

The RZ lens system also includes two specialized Short Barrel (SB) lenses which allow continuous focusing from infinity to close-up when attached to the Tilt/Shift Adapter. The 75mm SB and 180mm SB lenses are optically identical to the RZ series 75mm f/4.5 Shift and the 180mm f/4.5 W-N. The SB lenses may also be used on the Mamiya RZ camera without the Tilt/Shift Adapter and when used with the 27.2mm auto spacer, will focus continuously from close-up to infinity.