Leica M 240 Instructions Manual page 49

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. 178/
182/192.
A
All pictures and bright-line frame positions relative to 50mm focal length
A
Bright-line frame
B
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.
EN
B
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