16-235 vs 0-255 help

[hmcindie]

If you first shoot 220 levels and then show it at 256 level display the gradations become uneven and not so smooth. There will be missing tones.

 

Example:

 

http://***URL removed***/forums/post/54884851

 

That won't happen with cameras as they record straight to 235. You were doing two compresses, first 255->235 then back. That's in no way realistic.

 

Also I challenge you to come up with an example with an actual camera that records both and then show the difference. A7s record both 0-255 and 16-235 with different profiles. You will NEVER - in real life situations - see a difference in gradation between them. 

 

Photoshop examples are not real life tests.

 

In addition, TV's don't remap. They display 16-235 with 16 being black. There is no compressing of values.

[Vesku]

That won't happen with cameras as they record straight to 235. You were doing two compresses, first 255->235 then back. That's in no way realistic.

 

Also I challenge you to come up with an example with an actual camera that records both and then show the difference. A7s record both 0-255 and 16-235 with different profiles. You will NEVER - in real life situations - see a difference in gradation between them. 

 

Photoshop examples are not real life tests.

 

In addition, TV's don't remap. They display 16-235 with 16 being black. There is no compressing of values.

 

Computer monitors show 255 levels of each RGB color. If I use my plasmatv in PC monitor mode with my computer it behaves just like a monitor.

 

When a video has 220 levels and then it is expanded to 255 levels in monitor the quality will be worse than true 256 level video. It is still difficult to see the difference if not knowing what to look. 255 has "pop" or "wow" or photo like feeling and tones.

 

I would be happy if some else tests this too. I have no time now and besides I cant load samples here.