#Canon 7d review video manual
You can manually focus the lens during a recording, though, and the true manual operation of AF on Canon's lenses means you can do this more or less silently, simply by being careful about turning the focus ring. Instead, you can only trigger a contrast-detect AF cycle prior to the beginning of a recording by hitting the AF button on the camera's rear panel. The more sophisticated encoding used in the H.264 standard requires quite a bit of processor power to pull it apart and put it back together again, so frame-accurate editing of H.264 requires a fast processor and capable editing program.Īs with most other video-capable digital SLRs, the Canon EOS 7D doesn't offer autofocusing during video recording. (AVCHD uses a subset of the H.264 standard, among other things mandating a limit in recording bandwidth, which translates into a lesser ability to convey rapidly-changing detail.) The choice of H.264 comes with the requirement of greater processing power, though - not only from the camera when recording, but also when playing back or editing videos. (Canon didn't give a reason for this, but perhaps it's a matter of power consumption and sensor heating: We noticed that the body can get rather warm after an extended period of video shooting.) The Canon 7D records its movies as MOV files using AVC / H.264 compression, which is much more conservative of memory card space than the Motion JPEG format used by some cameras, and avoids some of the severe image quality loss suffered by AVCHD cameras when faced with significant amounts of change in image content between frames.
#Canon 7d review video movie
Individual movie clips captured by the Canon EOS 7D are limited to a maximum of twelve minutes in the high definition 1080p and 720p modes, or 24 minutes in the standard definition VGA mode. The numerous different frame rates match various broadcast television formats etc., removing the need to transcode to the intended output frame rate after capture. Finally, a standard definition 4:3 aspect ratio mode captures 640x480 pixel (VGA) movies, again with 59.94 frames/second in NTSC or 50 frames/second in PAL.
#Canon 7d review video full
The full resolution can be downsampled in-camera to produce 1,280 x 720 (720p) resolution movies, with the NTSC mode using 59.94 frames/second, and the PAL mode offering 50 frames/second. Both NTSC modes of 23.976 or 29.97 frames/second and PAL modes of 23.976 or 25 frames/second are available at full resolution. The Canon EOS 7D offers 3 resolution levels for video recording, with various frame rates available depending on encoding and resolution.The Canon 7D's all-new CMOS sensor records high definition video at a maximum resolution of 1,920 x 1,080 pixels with a 16:9 aspect ratio - what's sometimes referred to as "Full HD", or 1080i/1080p. Canon EOS 7D Video: Image Size, Frame Rate, and Encoding Like most digital SLR video modes, the Canon 7D omits continuous autofocus during video recording, which is likely more of a concern for the advanced amateur, with pros likely wanting to control focus manually regardless. Both shutter and aperture are available for manual control, and the 7D also provides multiple frame rate options, including three that match the HD television timing specs. The Canon EOS 7D's video functionality takes important steps in answering some of these criticisms, offering an unusually robust feature set that gives the photographer more control over their movies, as well as the ability to record audio from an external source. Most digital SLR video modes to date have had limitations in terms of control and output formats that have tempered this excitement somewhat, however. High-definition video capture has rapidly become a must-have feature in this year's digital SLRs, with advanced amateurs and budget-minded professionals alike excited by the possibility of using the same camera body and lenses for both still and movie shooting.
(Regular photos taken with the Canon EOS 7D)
(Thumbnails of all shots, including RAWs, with EXIF data)
(Index to all standard test shots, with explanations) (Crops from images shot with the camera's kit lens, if sold as a kit) Check out the links below for more sample images, videos and image quality analysis:
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