Cine settings? at DVinfo.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 December 22nd, 2004, 02:59 PM   #1
Regular Crew
 
Join Date: Oct 2004
Location: Wellington, New Zealand
Posts: 77
Cine settings?

What is the Color Matrix option really doing when it is set to "Cine"?

Is this applying a log curve to the chroma and/or hue response in the same way that setting the gamma to "Cine" changes luminance from linear to log? Or is it something else?

Thanks.
__________________
Regards,
Chris

http://www.lizardlounge.com
Chris Mills is offline   Reply With Quote
Old December 23rd, 2004, 04:43 AM   #2
RED Code Chef
 
Join Date: Oct 2001
Location: Holland
Posts: 12,514
Did you check page 68 of the (NTSC) manual:

Chapter: Using the Custom Preset
Paragraph: Gamma Curve

If you have the PAL manual look up that chapter.
__________________

Rob Lohman, visuar@iname.com
DV Info Wrangler & RED Code Chef

Join the DV Challenge | Lady X

Search DVinfo.net for quick answers | Buy from the best: DVinfo.net sponsors
Rob Lohman is offline   Reply With Quote
Old December 23rd, 2004, 05:19 AM   #3
Wrangler
 
Join Date: May 2003
Location: Houston, TX
Posts: 4,093
Yeah, that graph is just "representational" and doesn't give specific values; not sure exactly what is being changed and by how much between NORMAL and CINE in the Color Matrix setting. Just looking at the graph, it appears to pull the curve a bit toward, but not all the way to, linear. (The second graph below it with the straight lines looks to be just for knee and black, not the CINE modes.)

Poorly documented. I doubt if the specific details are published -- it might require doing sample shots of a color chart in both modes and analyzing them to really understand what is being done to the color matrix.

I don't have the time or talent for this particular issue but I do hope someone does.
__________________
Pete Bauer
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science. Albert Einstein
Trying to solve a DV mystery? You may find the answer behind the SEARCH function ... or be able to join a discussion already in progress!
Pete Bauer is offline   Reply With Quote
Old December 23rd, 2004, 06:14 AM   #4
Regular Crew
 
Join Date: Oct 2004
Location: Wellington, New Zealand
Posts: 77
Of course I read the manual.

I can not detect any appreciable difference between CINE and NORMAL for the Color Matrix. Furthermore the docs are talking about the gamma settings with that chart - not the Color Matrix.

It is a wonder as to what it actually is.
__________________
Regards,
Chris

http://www.lizardlounge.com
Chris Mills is offline   Reply With Quote
Old March 7th, 2005, 02:34 PM   #5
Regular Crew
 
Join Date: Apr 2004
Location: Athens, Ohio
Posts: 40
I am begining to suspect that no one really knows what Color Matrix does beyond the vague description in the manual. I can't generally detect a difference, but I suspect it may be a result of my other settings making this one undetectable.
__________________
Tom Koerner
Tom Koerner is offline   Reply With Quote
Old March 12th, 2005, 05:02 AM   #6
RED Code Chef
 
Join Date: Oct 2001
Location: Holland
Posts: 12,514
The best way perhaps to get to the bottom of what it does is hook
the camera up to something that can display vector scopes and
histograms in real-time (preferably for each color channel
separately!)

Then it can be seen what happens to the signal more clearly. It
could also be done in a similar way in post, but requires much
more (paper) work.

If I had an XL2 I'd be willing to try it, but santa hasn't brought me
one yet <g>
__________________

Rob Lohman, visuar@iname.com
DV Info Wrangler & RED Code Chef

Join the DV Challenge | Lady X

Search DVinfo.net for quick answers | Buy from the best: DVinfo.net sponsors
Rob Lohman 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...

Professional Video
(800) 833-4801
Portland, OR

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

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

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

 



Google
 

All times are GMT -6. The time now is 01:15 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network