Canon EOS 50 E - Page 54

Part 2: Technical Information
During manual focus, partial metering can
be linked to a focusing point only when
the focusing point is user-selected.
c. Centerweighted averaging metering
Like the EOS 500/Rebel X, centerweighted
averaging is based on the reading of the
entire 6-zone AE sensor.
d. Off-the-film flash metering
Fig. 2-10 Center-weighted average pattern
When this camera is used with the built-in flash, ML-3, 300TL, 380EX, or a
multi-flash setup with any of these flash units, it uses TIL autoflash metering. If
a Speedlite older than the 380EX is used, the camera uses A-ITL autoflash
metering. The ITL and A-ITL autoflash metering systems both use the same
metering sensor and algorithm as the EOS 500 /Rebel X. Autoflash metering is
linked to the three focusing points to detect the main subject and to weight the
flash exposure accordingly. Figure 2-12 shows the off-the-film flash metering
pattern.
so
S2
S3 S4
S5
Fig. 2-11 Evaluative metering zone patterns
2-10