Visual Proof of Why You Must Calibrate Your Display

**Andrew Robinson** · 03-27-2012, 11:52 AM

Originally Posted by cdsinfla

Andrew,
You would happen to know the time of that frame in the movie...would you? Or just a ball park idea?
I would like to compare it to my screen.

Thanks,
Chris

It's during the finale performance after Kidman and McGreggor reunite on stage. The Duke's bodyguard is trying to kill McGreggor's character with a small pistol.

**Wryker** · 03-29-2012, 09:42 AM

Anyone have a recommendation for someone to calibrate my Sony HW30 (I"m in Nashville, TN).?

**Andrew Robinson** · 03-29-2012, 09:57 AM

Originally Posted by Wryker

Anyone have a recommendation for someone to calibrate my Sony HW30 (I"m in Nashville, TN).?

I take it your image on the scene didn't look like the post calibration picture.

Maybe RayJr. knows of a few calibrators in your area.

**Wryker** · 03-29-2012, 10:10 AM

I can say, with pleasure, that I've never seen that movie.

**Mr Bob** · 03-29-2012, 11:13 AM

Originally Posted by k0rww

RayJr,

I definitely prefer the calibrated image.

How does the calibrator decide if the information missing in the mid-black detail in the first picture is important?

Richard

Excellent question! Very simple really, no test patterns or special equipment needed.

Turn up the Brightness/Black Level and see if anything is being hidden by it not being turned up enough.

If doing so reveals shadow detail that was not present before, then it had not been turned up enough before, and Br/BL needs to be at a higher setting. If it reveals that there really is not any more detail to be had from turning up the Br/BL - it's just blasted with gray crush that was black crush before, and shows that nothing else that was hidden before is revealed when the Br/BL is turned up - it can be turned back down and restored to where it already was, no harm no foul.

You must also be careful to use scenes with primarily dark material vs. scenes with bright content in them as well. Jim Doolittle taught me that many years ago when demo'ing the classic pluge pattern on the original VE to the one right after it, where 1/3 of the pattern, at one side, was brilliant white.

Your Br/BL setting must accommodate both of these extremes during playback of video material, which may contain the entire gamut of light to dark scenes.

In many cases a carefully chosen set of test images and scenes is far more revealing than any test pattern will be. I always fine tune my Br/BL settings with selections from real world material before declaring my calibrations finished.

Mr Bob

**RayJr** · 03-30-2012, 11:53 AM

Originally Posted by Wryker

Anyone have a recommendation for someone to calibrate my Sony HW30 (I"m in Nashville, TN).?

You may want to contact some of the calibrators on this list...most will travel.

http://www.thxvideotech.com/forum/sh...deo-Calibrator

Hope this helps.
RayJr

**Tracy Rainwater** · 03-30-2012, 12:55 PM

Looks there's on guy about 50 miles from me. Charles Cooper at Cinetune - Greater metropolitan Atlanta Georgia

Think I'll get a discount if I name drop RayJr.?

**RayJr** · 03-30-2012, 05:52 PM

Originally Posted by Tracy Rainwater

Looks there's on guy about 50 miles from me. Charles Cooper at Cinetune - Greater metropolitan Atlanta Georgia

Think I'll get a discount if I name drop RayJr.?

Hehe...I would like to say "yes".......but I really doubt it.

RayJr

**cdsinfla** · 04-17-2012, 02:47 PM

Originally Posted by Andrew Robinson

It's during the finale performance after Kidman and McGreggor reunite on stage. The Duke's bodyguard is trying to kill McGreggor's character with a small pistol.

It's at 46:06