Monday, August 02, 2004

XLent!

The new Canon XL2 mini-DV camcorder looks pretty sweet. Sorry for the long post, but I must list these. Here's the new major features:

16:9 and 4:3 aspect ratio shooting formats

With an increasing consumer shift towards widescreen TVs that deliver the full width of film-based theatrical movies, plus the resulting need for productions in the 16:9 aspect ratio, Canon's XL2 offers both the standard 4:3 aspect ratio and the 16:9 widescreen TV aspect ratio. Representing the ratio of the screen width to its height, the 4:3 aspect ratio is that of the common TV screen, and is the most commonly used aspect ratio in broadcasting today.

The 16:9 aspect ratio is the more common aspect ratio for film-based movies, and produces full screen playback on widescreen TVs. 16:9 also is the world standard aspect ratio for HDTV.

By offering a camcorder that is able to be switched between the two aspect ratios, Canon opens the door for multiple production options with the same camera -- the XL2.

Variable frame rates

60i / 30p / 24p (2:3 and 2:3:3:2 both with 1/48th second shutter speed) frame rates are available in the XL2.

The demands being made on the video production community to be able to provide solutions under a multitude of different scenarios have been met with the Canon XL2. It delivers 60i, 30p, 24p (2:3 and 2:3:3:2) frame rates. 60i (interlaced) is the standard video frame rate that has been in use for decades; it's what you see on your home TV, and is captured by handheld consumer camcorders. Progressive (non-interlaced) scanning mimics a film camera's frame-by-frame image capture. 30p, or 30-frame progressive, a non-interlaced format, produces video at the rate of 30 frames per second, delivering spectacular clarity for high speed subjects. Shooting in 30P mode offers video with no interlace artifacts.

The 24p frame rate, for example, is now widely adopted by those planning on transferring the video signal to film. But film/videomakers turn to 24p for the "cine" look even if their productions are not going to be transferred to film, simply because of the "look" of the frame rate. Also just as important as 24p, is the shutter speed of 1/48th per second. This is the standard shutter speed that movie cameras use. The combination of 24p frame rate and 1/48th perfectly mimic a motion film camera.

24p with 2:3 pulldown produces video with the look and motion of film. (24p, used in conjunction with a cine gamma curve on the XL2, produces images that have similar tonal characteristics as film. This mode is used when the finished video will be shown on television. 24p with 2:3:3:2 pulldown, is used when the video is going to be transferred to film. The 2:3:3:2 pulldown allows to editing software to extract true 24 frames a second.

SMPTE time code

The Canon XL2 offers many on-camera enhancements to help capture high-quality footage, including features commonly found on broadcast camcorders. Among these is the placement of a SMPTE time code on the tape. SMPTE (Society of Motion Picture and Television Engineers) time code is a digital signal that assigns a number to every frame of video, representing hours, minutes, seconds, frames, plus some additional information. The SMPTE time code is used to identify a precise location on a video tape, a mainstay of professional editing allowing all tape and equipment to work together for precise editing.

You can choose Drop, Non-Drop, Rec Run and Free Run modes. Also provided is User bit settings, allowing the inclusion of reel number or other user data.

The XL2 also generates SMPTE color bars with 1 KHz tone (-12dB and -20dB). SMPTE color bars with tone are the standard method of setting up video and audio monitors and edit suites. By using industry standard color bars and tone, the XL2 fits in with all production equipment.

1 comment:

Brock said...

The pulldown and 24p info is especially interesting to note about this camera.