Canon EOS1 Ds MARKII Design And Performance page 22

Viewfinder Type: Eye-level SLR (with fixed pentaprism)
Coverage: Approx. 100% vertically and horizontally (Coverage against JPEG Large)
Magnification: 0.7x (-1 diopter with 50mm lens at infinity)
Eyepoint: 20mm
Built-in Dioptric Correction: -3.0 – +1.0 diopter
Focusing Screen: Interchangeable (9 types), Standard focusing screen: Ec-CIII
Mirror: Quick-return half mirror (Transmission: reflection ratio of 37:63, no mirror cut-off
with EF 1200mm f/5.6 or shorter lens)
Viewfinder Information: AF information (AF points, focus confirmation light), exposure
information (shutter speed, aperture, manual exposure, spot metering circle, ISO speed,
exposure level, exposure warning), flash information (flash ready, FP flash, FE lock, flash
exposure level), white balance correction, JPEG recording, number of remaining shots,
memory card information
Depth-of-field: Enabled with depth-of-field preview button (with Speedlite 580EX,
550EX, MR-14EX, or MT-24EX, pressing the depth-of-field preview button fires a
modeling flash)
Eyepiece Shutter: Built-in
Autofocus Type: TTL-AREA-SIR with AF-dedicated CMOS Sensor
AF Points: 45
AF Working Range: EV 0-18 (at ISO 100)
Focusing Modes: One-Shot AF, Predictive AI Servo AF, AI Focus AF (Automatically selects
One-Shot AF or AI Servo AF), Manual focusing (MF)
AF Point Selection: Automatic selection, manual selection, home position (switch to
registered AF point)
Selected AF Point Display: Superimposed in viewfinder and indicated on LCD panel.
AF-assist Beam: Emitted by the dedicated Speedlite
Exposure Control Metering Modes: 21-zone TTL full aperture metering. (1) Evaluative metering (linkable to
any AF point), (2) Partial metering (approx. 8.5% of viewfinder at center), (3) Spot
metering [Center spot metering (approx. 2.4% of viewfinder at center), AF point-linked
spot metering (approx. 2.4% of screen), Multi-spot metering (Max. 8 spot metering
entries)], (4) Center-weighted averaged metering
Metering Range: EV 1-20 (at 20°C with 50mm f/1.4 lens at ISO 100)
Exposure Control Systems: Program AE (shiftable), Shutter-priority AE, Aperture-priority
AE, E-TTL II Autoflash Program AE, and Manual.
ISO Speed Range: Equivalent to ISO 100-1600 (in 1/3-stop increments), ISO speed can
be expanded to ISO 50 and 3200 via menu selection.
AE Lock: Auto: Operates in One-Shot AF mode evaluative metering when focus is achieved.
Manual: By AE lock button in all metering modes.
IV. SPECIFICATIONS 22