(2) Exposure control
1) Automatic exposure control
In addition to all the
picture-taking modes that
the EOS ELAN II E / EOS 50
E has, the EOS ELAN 7 E /
EOS 30 also has the Night
Scene mode.
2) Shutter
The shutter unit is based on
the EOS ELAN II E / EOS 50
E's shutter unit. Table 2-4
shows the shutter's design
specifications.
Part 2: Technical Information
2-11
Table 2-4 Shutter Design Specifications
Item
1. Type
2. Shutter Blade Type
3. Shutter Blades
4. Shutter Blade Material
5. Driving System
6. Shutter Speed Control
7. Curtain Speed
8. Shutter Speeds
9. Max. Sync Speed
10. Signal
Specification
Vertical-travel, focal-plane shutter
Parallel, four-sided link type
8 blades (four each for the 1st and 2nd curtains)
Metallic and engineering plastic
1st and 2nd curtains each driven by a
torsion spring
Approx. 4.8 ms/24mm
30 sec. – 1/4000 sec., bulb
1/125 sec.
X-sync, 2nd curtain travel-completed signal
Electromagnetic holding dedicated to
each of the 1st and 2nd curtains. All
speeds electronically controlled by
the electromagnet which releases the
curtain while the power is off.
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