发表于 2008-09-17 17:32 IP属地：未知
Additional information
New CMOS sensor
The EOS 5D Mark II newly designed full frame 21.1 Megapixel CMOS sensor features ISO sensitivity from 100-6400, expandable to 50, 12,800 and 25,600. Large 6.4µm2 pixels have been redesigned to capture more light and yield a better signal to noise ratio to ensure lower noise images throughout the ISO range. The full frame sensor has the same dimensions as a frame of 35mm film. This means that wide-angle lenses stay wide, without the change in angle of view associated with smaller sensor cameras. As well as benefiting from finer control over depth of field, photographers moving up to the EOS 5D Mark II full frame format will find the newly designed wide, bright 98% coverage viewfinder a joy to work with.
New DiG!C 4 processor
A new DiG!C 4 processor combined with 14-bit analogue to digital conversion provides smooth gradations in mono-tonal areas such as skies, and highly accurate colour rendition. As well as HD movie shooting, DiG!C 4’s high speed provides for long uninterrupted continuous bursts of large JPEGs, near-instant start-up times and immediate and fast review after shooting. DiG!C 4 also provides for improved noise reduction algorithms, complementing the already low noise images from the EOS 5D Mark II CMOS sensor.
HD video capture
The EOS 5D Mark II is Canon’s first D-SLR to incorporate full HD 1920×1080 video capture. Once filming is started from Live View mode, photographers can fire off either single or continuous stills, with video capture continuing after the final frame is captured.
See everything
A new 3.0” VGA resolution LCD provides a wide 170º angle-of-view, providing plenty of clarity for accurate focus checks in playback. The screen brightness can automatically adjust to suit viewing conditions, extending battery life in low light and improving viewing in bright conditions. A new dedicated Live View button switches modes to display a real-time image on the LCD. This allows EOS 5D Mark II photographers to enjoy simplified shooting from awkward angles. Simple connection to a PC provides easy remote shooting.
Precision focus and metering
A 9-point auto focus system is supported by 6 additional invisible Assist AF points, located inside the spot-metering circle to optimise subject tracking performance in AI SERVO AF mode. For accurate exposure readings in tricky lighting conditions, the spot metering circle covers just 3.5% of the frame.
Control
The EOS 5D Mark II redesigned menu system includes a new Quick Control screen, for instant access to the most commonly changed settings. A new Creative Auto mode allows photographers to cede control of key settings to the camera, while retaining control over creative variables such background blur, drive mode and image brightness. Custom user settings allow photographers to switch between two completely different camera setups. This is ideal for changing quickly between two different environments, such as switching from working inside a church without flash to outdoors with fill-flash at a wedding.
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