Home Buyer's Guide Cameras SLRs Over $2,000 Canon EOS-1D Mark IV
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1. Dual Card Slots: The Mark IV has a slot for CompactFlash (UDMA Mode 6-compliant) and another for SD/SDHC memory cards. 2. Picture Styles: Like all current Canon D-SLRs, the Mark IV provides Picture Styles, which let you choose a basic “look” and then modify it as desired.
3. 100% Viewfinder: The Mark IV’s pentaprism viewfinder shows approximately 100% of the actual image area for precise composition. Contact: Canon, (800) OK-CANON, www.usa.canon.com.


LIST PRICE: $4,999 (body only)

16.1-MEGAPIXEL CMOS SENSOR: Like previous EOS-1D models, the Mark IV has an APS-H (1.3x focal-length factor) image sensor, but this Canon CMOS unit features 16.1 megapixels, delivering images that measure 4896x3264 pixels. Improved photodiode construction, gapless microlenses positioned closer to the sensor, an enhanced color-filter array and upgraded sensor circuitry produce image data with lower noise from the outset, rather than just employing improved noise reduction. Besides full-res 16-megapixel images, you can shoot M-RAW (9 megapixels) and S-RAW (4 megapixels), as well as JPEGs at 12.4, 8.4 and 4 megapixels.

NEW AF SYSTEM: An all-new AF system provides better performance in low light and with low-contrast subjects than its predecessor. Thirty-nine of the 45 AF points function as cross-types when lenses of ƒ/2.8 or faster are used. An all-new AI Servo II AF predictive focusing algorithm improves responsiveness and stability, and can keep up with the camera’s 10 fps advance rate.

HD VIDEO: The first pro EOS model to provide video capability, the Mark IV can shoot 1920x1080p full HD video at 30, 24 or 25 fps, 1280x720p HD video at 60 or 50 fps and 640x480p SD video at 60 or 50 fps. The Mark IV’s sensor is about the size of a Super 35mm motion-picture frame, so depth of field with any given lens is cinema-like. As with the EOS 7D, you can easily control exposure and focus manually when desired. You can shoot videos with more than 50 Canon EF lenses (but not EF-S lenses, which were designed specifically for the smaller-sensor EOS models and can’t be mounted on the Mark IV). An internal microphone records mono sound, or you can connect an optional external mic for stereo sound.

10 FPS SHOOTING: The Mark IV can shoot those big 16-megapixel images at 10 fps for up to 26 RAW images or 121 Large JPEGs when using a UDMA CF card.
It has been two and a half years since Canon introduced its EOS-1D Mark III pro D-SLR, which amazed action shooters with its ability to shoot 10.1-megapixel images at 10 fps. Now comes its successor, the EOS-1D Mark IV, which can shoot 60% larger images at the same rate and at amazingly high ISOs, and does full HD video, too.

The Mark III featured dual DIGIC III image processors. The Mark IV sports twin DIGIC 4 processors, with approximately six times the processing power. That improves image quality and makes possible HD video and the super-quick performance, even with 14-bit, 16-megapixel images.

The Mark IV retains the efficient 63-zone metering system of the Mark III, which also provides 13.5% partial, 3.8% spot and center-weighted average metering. Spot metering can be linked to the active AF point, and multi-spot metering can consider up to eight spot readings. Also retained is a system that uses ultrasonic vibrations to remove dust from the image sensor.

Like all EOS-1 series cameras, the Mark IV was designed for hard pro use. Body covers, the internal chassis and the mirror box are made of rugged, yet light magnesium alloy, while the lens mount is of stainless steel for added strength. Seventy-six gaskets and seals protect against weather (the Speedlite 580EX II and most current L-series lenses also are fully weather-resistant). Like the EOS-1D Mark III, the Mark IV’s LCD monitor is 3.0 inches, but the resolution has increased from 230,000 dots to 920,000.

Auto Lighting Optimizer automatically adjusts the image for optimal brightness and contrast in-camera, reducing the need for extensive postprocessing corrections.

STANDOUT FEATURE: The Mark IV has a normal ISO range of 100-12,800, expandable to L (50), H1 (25,600), H2 (51,200) and even H3 (102,400). All settings but 50 can be used for videos, too!
VERDICT: The EOS-1D Mark IV should be a terrific action and available-light camera, and can do videos in amazingly low light.

Canon EOS 5D Mark II
Canon’s first D-SLR to offer HD video, the 5D Mark II offers a 21.1-megapixel full-frame CMOS sensor and HD video at 1080p and 720p in a somewhat less rugged body. List Price: $2,699.
Canon EOS 7D
If you don’t want a full-frame sensor, the EOS 7D offers an 18-megapixel APS-C sensor, pretty much the same video capabilities as the Mark IV, dual DIGIC 4 processors and 8 fps shooting. List Price: $1,699.


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