HV 20 Cinemode vs. Regular Mode Black Levels at DVinfo.net

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

Canon VIXIA Series AVCHD and HDV Camcorders
For VIXIA / LEGRIA Series (HF G, HF S, HF and HV) consumer camcorders.


Reply
 
Thread Tools Search this Thread
Old May 10th, 2007, 07:20 PM   #1
Major Player
 
Join Date: Nov 2004
Location: Detroit, MI
Posts: 399
HV 20 Cinemode vs. Regular Mode Black Levels

I did some tests on the HV 20 to see the differences in black levels between the Cinemode and the Regular mode gammas. I did this to see whether the blackest black in the Cinemode was truly black.

To create the tests, I first closed the iris as much as possible and then capped the lens to eliminate any light. I then captured direct into Premiere Pro. I then used the eyedropper within the color correct tools to measure R,G,B, levels.

Default video gamma in TV mode: 0,0,0, RGB

Cinemode Gamma: 3,3,3 RGB

With my camera, it seems as if the cinemode is raising the black level slightly. It will not produce a black below 3,3,3.
Brian Tori is offline   Reply With Quote
Old May 10th, 2007, 09:21 PM   #2
Major Player
 
Join Date: Feb 2007
Location: Central, OH
Posts: 207
Quote:
Originally Posted by Brian Tori View Post
it seems as if the cinemode is raising the black level slightly. It will not produce a black below 3,3,3.
I noticed this on the first cinemode footage posted here, although I expected you might be able to slide it down into true black by using some of the other settings on the camera. I kind of figured you'd be able to drop the gray-blacks down to black-black in cinemode by either the exposure lock (cranking down the exposure) and/or by lowering the brightness setting under custom settings, or maybe even bumping up the contrast settings there (although I wondered if upping the contrast would defeat the extended latitude that cinemode provides).

It sounds like you tried cranking down the aperture by adjusting the exposure lock, how about lowering the brightness setting, did you try that?
David Garvin 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 XA and VIXIA Series AVCHD Camcorders > Canon VIXIA Series AVCHD and HDV Camcorders

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 07:33 PM.


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