Tuesday, February 17, 2009
Straight To Video
The newest evolution in D-SLR technology has finally brought us high-definition video and stills in one camera. Here’s a look behind the scenes.
Canon EOS 5D Mark II
The Canon EOS 5D Mark II is the replacement to the popular full-frame original EOS 5D. The EOS 5D Mark II has a 21.1-megapixel, full-frame CMOS sensor, which includes the best image quality in the EOS D-SLR class, a self-cleaning sensor unit (the 5D did not), fast operation, a 3.0-inch, 920,000-dot LCD monitor, ISOs up to 25,600 and the ability to shoot 1920x1080p full HD video with mono or stereo sound (via a third-party external microphone).
The EOS 5D Mark II can shoot video at 30 fps in either 1920x1080-pixel full HD or SD video with a resolution of 640x480 pixels. The camera is limited in full HD video shooting time to 4 GB, or about 12 minutes. Canon recommends manual focus for video capture because autofocus is slow with video and could possibly defocus while shooting.
While shooting in video mode, you can adjust Picture Styles, white balance, AE lock, exposure compensation, peripheral illumination (vignetting) correction, Auto Lighting Optimizer and Highlight Tone Priority. Exposure mode is programmed AE; metering (via the image sensor) is center-weighted average. HD movies have a 16:9 aspect ratio, SD movies 4:3 and still images 3:2. The 3:2-ratio LCD monitor is letterboxed by a semi-transparent border in the appropriate aspect ratio during video shooting.
|Sensor: 21.1-megapixel CMOS |
Still Resolution: 5616x3744 pixels
HD Video Resolution: 1920x1080p
Still Recording Formats: JPEG, RAW, sRAW1, sRAW2
Video Recording Formats: .MOV, MPEG-4
Storage Media: CompactFlash (UDMA-compliant)
Dimensions: 6.0x4.5x2.9 inches
Weight: 28.5 ounces
Estimated Street Price: $2,699
Contact: Canon, (800) OK-CANON, www.usa.canon.com
The Nikon D90 was the first digital SLR released with video capture. It sports a newly developed DX-format, 12.3-megapixel CMOS image sensor with technology directly inherited from the highly touted, pro-level D300. Some of the features of the D90 include excellent still-image quality, fast operation, a self-cleaning image-sensor unit, a 3.0-inch, 920,000-dot LCD monitor, effective Active D-Lighting to control contrast and the ability to shoot 1280x720p HD video with monaural sound.
The D90 shoots HD video at 1280x720 or SD video at 640x424 or 320x216. It also shoots at the cinematic rate of 24 fps in .AVI format with Motion JPEG compression and mono sound (or without sound). HD videos have a wide-screen 16:9 aspect ratio, while standard videos have a 3:2 aspect ratio.
Videos can be shot in Program, Shutter Priority, Aperture Priority or Manual modes, only with Matrix metering. There’s no autofocus during video capture, but you can manually focus while shooting. The D90 is limited to 5 minutes of HD video capture and about 20 minutes during SD video mode.
|Sensor: 12.3-megapixel CMOS |
Still Resolution: 4288x2848 pixels
HD Video Resolution: 1280x720p
Still Recording Formats: JPEG, RAW
Video Recording Formats: .AVI, Motion JPEG
Storage Media: SD, SDHC
Dimensions: 5.2x4.1x3.0 inches
Weight: 21.9 ounces
Estimated Street Price: $999
Contact: Nikon, (800) NIKON-US, www.nikonusa.com
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