or Connect
AVS › AVS Forum › Display Devices › Display Calibration › Questions on Calibrating a 3D Projector
New Posts  All Forums:Forum Nav:

Questions on Calibrating a 3D Projector

post #1 of 10
Thread Starter 
I want to try calibrating the 3D grayscale of my W1070 with an i1 Display Pro.

As far as I know there are no available 3D calibration discs with IRE patterns (if there are please tell me!)

Which means, I'm guessing, that I have to force a 2D calibration disc into 3D mode? Is that right?

The W1070 can not be forced into 3D mode as far as I know and neither can my Opp 93 BDP.

I have an older blu-ray player that will convert 2d discs to 3D, so ... should I use that and a 2D calibration disc to calibrate for 3D?

All advice appreciated!
post #2 of 10
Yes, the projector must be placed in 3D mode SOMEHOW, SOME WAY. A Blu-ray player with 2D-3D conversion should work. If your projector has a 3D-from-2D mode, that should work also. There are a fair number of projectors and panels that do not have any means of putting them in 3D mode if the signal is not 3D. If your projector is one of those, you will have to use a workaround like one of the ones you described. If your Blu-ray player lets you specify the 3D output mode, frame packed is the one you want to use.

Once you are in 3D mode, a pair of active shutter glasses have to be turned on and placed in front of the meter's lens while you are making measurements.

There is an alternative to that... IF you have calibration software that supports profiling. You can do a profiling measurement with the 3D glasses in front of the meter -- that becomes your target or reference response. You would also measure the same pattern with the 3D glasses removed from in front of the meter so the meter is reading the screen directly. The software will then create a correction matrix so that measurements made without the 3D glasses are "corrected" in software so that the readings are very close to what you would read if the 3D glasses were in the measuring path. That helps quite a lot when you are measuring the dark end of the luminance range. If your software does not support characterization, than you must have the 3D glasses in front of the meter AND TURNED ON for all 3D measurements. The glasses will cut light available for measurement by more than 50%. I've seen cases where the actual light loss is as high as 80%. That can make it difficult to calibrate the darker end of the luminance range through the 3D glasses, which is a powerful argument for using software that supports meter profiling or characterization or whatever they might call it.
post #3 of 10
Thread Starter 
Thanks for the response!

I plan on getting Calman 5 which I assume supports profiling. I also discovered that the latest spears and munsil disc has 3D calibration screens and I have ordered it ... May still try forced conversion while I wait though ...
post #4 of 10
Quote:
Originally Posted by Tangled Cable View Post

Thanks for the response!

I plan on getting Calman 5 which I assume supports profiling. I also discovered that the latest spears and munsil disc has 3D calibration screens and I have ordered it ... May still try forced conversion while I wait though ...

The Spears & Munsil Version 2 disc works great in 3D. It uses the same 2D patterns but when you go to the setup menu, you can select 3D output instead of 2D. The patterns themselves are still 2D, but your player will automatically switch to 3D mode.

The disc also has some specific stereoscopic patterns as well for checking crosstalk, depth, polarity, etc. It's a terrific disc you won't regret getting.
post #5 of 10
Calman is sold in many versions depending on your needs. Don't assume the one you plan to purchase supports profiling... make sure it does. You may find you have to move up 1 or 2 steps to get profiling support. I've never checked out which versions support or don't support profiling, but do check before you buy.
post #6 of 10
"CalMAN 5 Control adds automation and power, allowing you to directly connect to the most popular video processors and displays, so that you don’t have to use the remote to hunt through on-screen displays for the control you need.

CalMAN 5 Control includes everything available in CalMAN 5 Basic, plus the following features:

A greatly extended range of meters and pattern sources. (See the hardware support matrix.)
An expanded range of workflows
Direct Display Control access to supported panels and projectors, via direct controls and interactive charts
Autocalibration of supported displays and processors - including gamma, grayscale, and now unprecedented color gamut autocalibration as well!
The Meter Profile Editor
The Disc Player IR Editor"

So, Control is the lowest option to support profiling.
post #7 of 10
post #8 of 10
Thread Starter 
That is good to know but I don't think my w1070 supports auto-calibration ...
post #9 of 10
Quote:
Originally Posted by Tangled Cable View Post

That is good to know but I don't think my w1070 supports auto-calibration ...
Control is the base level where you can profile so you would want to buy that license level at the least but I would suggest you just spend the extra few bucks and get Enthusiast level and you will have everything you may possible need in the future.
post #10 of 10
Quote:
Originally Posted by Tangled Cable View Post

That is good to know but I don't think my w1070 supports auto-calibration ...

BenQ Projectors don't have the capability to be controlled by CalMAN (or any other calibration software) to perform an AutoCAL using their internal available calibration controls.

CalMAN's Consumer Licencie can connect to JVC Projectors, here is the supported hardware list.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Display Calibration
AVS › AVS Forum › Display Devices › Display Calibration › Questions on Calibrating a 3D Projector