Mamiya DM System User Manual download pdf (Page 45)

Chapter 1 - Basic info

Chapter 3 - Preparing the battery and compact ﬂash card

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Point the camera at a bright, plain object such as a white wall when making this adjustment.

Range of adjustment of diopter correction lenses (optional accessory)

Diopter not matching.

Look through the viewﬁnder and make sure that the focus frame (rectangle with circle) is in sharp

focus. If it is not, turn the diopter adjustment dial in the “–” direction if you are nearsighted and in

the “+” direction if you are farsighted. If this is not sufﬁcient consider using an optional diopter

correction lens. See below.

Diopter correction lens Range of adjustment

DE401 (standard) -2.5 to +0.5

DE402 (for nearsighted users) -5.0 to -2.0

DE403 (for farsighted users) 0 to +3.0

Diopter matching.

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Mamiya DM System User Manual Page 45