Page 3 of 3 FirstFirst 123
Results 21 to 24 of 24
  1. Collapse Details
    #21
    Senior Member
    Join Date
    Jul 2007
    Location
    Toronto
    Posts
    6,132
    Cool
    Quote Originally Posted by Vesku View Post
    Here is a very good study of different color spaces. It has an interesting table of contrast ratios.
    Keep in mind that this chart is almost 4 years out of date and a h*ll of a lot has changed with the mid to lower end gear since then.


    Reply With Quote
     

  2. Collapse Details
    #22
    Senior Member
    Join Date
    Dec 2013
    Posts
    425
    Default
    Quote Originally Posted by TheDingo View Post
    Keep in mind that this chart is almost 4 years out of date and a h*ll of a lot has changed with the mid to lower end gear since then.
    Yes but it has many interesting values like DR in eye 6.5 stops simultaneously or 20 stops in general. Also film recording / film projection very high value is a surprise. I dont remember seeing good contrast or vivid colors in cinema. How can a cinema image has 13 stops when the max brightness is 48nits and blacks gray. How the cinema colors space DCI-P3 can have vivid colors when the image is generally very dim.

    Also the 16 stops of old good CRT TV is a surprise. I remember comparing my Philips CRT tube TV and my Samsung top model plasma TV side by side and the CRT Philips had much higher visible contrast.
    Last edited by Vesku; 12-07-2017 at 12:43 PM.


    Reply With Quote
     

  3. Collapse Details
    #23
    Senior Member
    Join Date
    Jan 2006
    Location
    Nashville, TN
    Posts
    849
    Default
    Those projector stats are bogus. A projected film positive doesn't have more DR than the original negative.

    Milky blacks and 14ftl of light can't represent 16 stops.


    Reply With Quote
     

  4. Collapse Details
    #24
    Senior Member
    Join Date
    Dec 2013
    Posts
    425
    Default
    GH5 HLG is stored in rec2020 file. It is a very large color space and no monitor or TV can show its most vivid colors. The Gh5 HLG file looks very muted when watching with rec709 display. I wonder if the GH5 HLG file tries to grade vivid colors somewhere between rec709 and rec2020 and not recording color values near max values. The HLG file watched with rec709 display needs much added display saturation adjustment because the color values are not near the max in rec2020 file. It is like a rec709 file recorded with saturation -5.


    Reply With Quote
     

Page 3 of 3 FirstFirst 123

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •