Compressed or not? at DVinfo.net
DV Info Net

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XL and GL Series DV Camcorders

Canon XL and GL Series DV Camcorders
Canon XL2 / XL1S / XL1 and GL2 / XM2 / GL1 / XM1.

Reply
 
Thread Tools Search this Thread
Old July 1st, 2005, 07:51 PM   #1
New Boot
 
Join Date: Jun 2005
Posts: 6
Compressed or not?

Hi to all again. I've been reading and reading, no XL2 yet, soon though. I am very familiar w/digital cameras and the like, raw, jpeg etc. What I was wondering is this. Is there any comparison to 35mm Digitals that you can use in describing the XL2? I mean, if using a say 10D as I do and shoot raw, the image is actually what the CCD sees, the manual settings you use are just tagging the image. Thus, you can do more corrections post shoot (WB adjustments) because the file is not being actually corrected and such during the picture taking process. If on the other hand you use say jpeg as a capture preset, the picture would look fine and all, but it has been compressed by the camera. Does this principle hold true for the XL2. If shooting manual it's more of an untouched footage by the camera that you could say edit in FCP w/better results? I know this is long winded and I hope I get my question across.
Ron Tucker is offline   Reply With Quote
Old July 1st, 2005, 08:15 PM   #2
Major Player
 
Join Date: Mar 2004
Location: Roanoke, VA
Posts: 796
Hi Ron,

By definition DV footage is compressed video. When I say "DV" I don't mean Digital Video. DV is the codec used for compressing video for standard definition MiniDV tapes. There's some great info at Adam Wilt's web site regarding various codecs.

The settings on the camera do not change the compression or codec used.
__________________
Dave Perry Cinematographer LLC
Director of Photography • Editor • Digital Film Production • 540.915.2752 • daveperry.net
Dave Perry is offline   Reply With Quote
Old July 2nd, 2005, 11:27 AM   #3
Obstreperous Rex
 
Join Date: Jan 2001
Location: San Marcos, TX
Posts: 27,368
Images: 513
All standard-definition DV camcorders including the XL2 record video at a fixed 5:1 compression. The "image size" of a frame of North American (NTSC) DV is 720 x 480. This is used for broadcast all the time and is the same image size as your standard DVD. Compare this DV size of 720 x 480 to an eight-megapixel Digital SLR photo camera which produces an image size of roughly 3450 x 2300 and you can appreciate right away the vast difference between images intended for printing and images intended for television screens.

The program mode of a DV camcorder (manual vs. AE, etc.) has no impact on DV compression. It's always going to be 5:1 by definition. Hope this helps,
__________________
CH

Search DV Info Net | 20 years of DVi | ...Tuesday is Soylent Green Day!
Chris Hurd is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XL and GL Series DV Camcorders

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



All times are GMT -6. The time now is 01:35 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network