A bit Purplish? at DVinfo.net

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

Canon XL H Series HDV Camcorders
Canon XL H1S (with SDI), Canon XL H1A (without SDI). Also XL H1.


Reply
 
Thread Tools Search this Thread
Old November 9th, 2006, 01:04 AM   #1
Regular Crew
 
Join Date: Dec 2005
Location: los angeles
Posts: 38
A bit Purplish?

I had the oppurtunity to work with the XL H1 last weekend, being a XL2 owner, I wanted to love the camera, but it looked a bit purplish. Has anyone else noticed this?

It didn't matter if I tinkered with the cine controls, white balanced manually or automatic, or even had the setting dail control on "A" or the green square, subtle purplish in the highlight tones.

WTF?
R.W. Swanson is offline   Reply With Quote
Old November 9th, 2006, 02:32 AM   #2
Trustee
 
Join Date: May 2003
Location: Atlanta GA
Posts: 1,427
hey R.W. what were you monitoring off of? I've seen that purplish tinge in highlights (or anything white really) in monitors as they start to go south or if you're using an adapter to an lcd. (I've seen the opposite way, with a big green shift as well) I just wonder fi it was maybe whatever you were looking at and not neccisarilly the camera. Unless maybe it was in an ultra contrasty area and you caught some fo that notorious Chromattic abberation (or whoever you spell it)
__________________
I have a dream that one day canon will release a 35mm ef to xl adapter and I'll have iris control and a 35mm dof of all my ef lenses, and it will be awesome...
Nick Hiltgen is offline   Reply With Quote
Old November 9th, 2006, 03:18 AM   #3
Major Player
 
Join Date: Aug 2004
Location: Tampere, Finland
Posts: 443
Quote:
Originally Posted by R.W. Swanson
Has anyone else noticed this?
Yes, and if you examine this forum, you'll find several discussions on the topic in this forum. For some reason, the factory settings of XL H1 tend to be tinted towards magenta. Some people have reported the opposite having the camera tinted towards green or cyan. To remove such a magenta bias, the camera has to be carefully fine tuned.

The other issue is that when you are very close to the monitor, you'll find the standard 20x lens makes edges to spread to magenta/green lines especially close to the left and right border of the image. Such an effect, however, "fits into the specs" meaning the idea is not to watch a video image next to the monitor. This is also a lense dependent effect, and it is interesting to see, whether the new wide angle lense coming out in the very near future is better in this respect.
Lauri Kettunen is offline   Reply With Quote
Old November 9th, 2006, 10:07 AM   #4
Major Player
 
Join Date: Jun 2004
Location: McLean, VA United States
Posts: 749
Quote:
Originally Posted by R.W. Swanson
I had the oppurtunity to work with the XL H1 last weekend, being a XL2 owner, I wanted to love the camera, but it looked a bit purplish. Has anyone else noticed this?
As others have noted what you are seeing may be in the monitor. To properly judge not only must the monitor be functioning properly but must be set up properly and in an appropriate ambient. A good way to get around these diffiulties is to use whatever NLE you use or Quicktime to export a frame which contains an image of, for example, a Macbeth card to Photo Shop or some other application which allows measurement of color. The camera should have been balanced against the light source being used when the image was recorded. Be sure to handle the color space conversion properly as required by your application. Now use the application's color analysis tool to check the saturation of each gray patch on the Macbeth card. The saturation should be very close to 0 for each. If it isn't note the hue. While you are at it you can, of course, check the colors of the other patches on the card. Their values are printed on the jacket.
A. J. deLange is offline   Reply With Quote
Old November 10th, 2006, 02:33 PM   #5
Major Player
 
Join Date: Nov 2004
Location: Las Vegas, NV., Los Angeles, CA,
Posts: 220
I really hadn't noticed too much purple fringing for the forst 10 months of owning the camera. but recently i was in NYC and while I was up on top of a building getting wide shots on a tripod there was most certainly a bias towards purple in the bright sky and clouds mostly towards the upper left of the frame...

bummer

-Jon
__________________
Jon Bickford, Trepany Films
San Pedro, CA
Trephine001@aol.com
Jon Bickford 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 H Series HDV Camcorders

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 09:17 AM.


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