Leica M Instruction Manual download pdf (Page 174)

172

Bright-line frames on a viewﬁ nder camera must be matched to the

image angle of the relevant lens focal lengths. However, the nominal

image angles change slightly when focusing due to the changing

extension, i.e. the distance between the optical system and the

sensor plane. If the set range is less than inﬁ nity (and the extension

correspondingly greater), the actual image angle is smaller - the lens

captures less of the subject. In addition, the diﬀ erences in the image

angle tend to be greater at longer focal lengths, as a result of the

greater extension. In the middle of the viewﬁ nder image is the square

range metering image, which is brighter than the surrounding image

ﬁ eld. If the exposure meter is turned on, the exposure meter LEDs

and the ﬂ ash symbol LED appear at the lower edge of the viewﬁ nder

image.

For more details about setting the range and exposure metering, as

well as ﬂ ash mode, refer to the relevant sections on p. 174/ 179.

All pictures and bright-line frame positions relative to 50mm focal length

Bright-line frame

Actual image ﬁ eld

Set to 0.7m: The sensor detects approx. one frame width less.

Set to 2m: The sensor detects exactly the image ﬁ eld shown by

the inner edges of the bright-line frame.

Set to inﬁ nity: The sensor detects approx. 1 or 4 (vertical or

horizontal) frame width(s) more.

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Leica M Instruction Manual Page 174