DIY Calibration

I bought the Spyder3TV calibration system a few years ago but never used in on my former 50-inch plasma. I now have a Panasonic TC-P54G25 plasma, and I love it, but I haven't calibrated it yet. Is the Spyder3TV any good, or is there a better one? Also, is it even necessary to calibrate it?

Doug Pennell

According to Josh Kairoff of Display Engineering and a consultant to Datacolor, maker of the Spyder3TV, this product is intended to aid consumers in setting the basic picture controls—brightness, contrast, color, and tint—rather than provide an accurate grayscale calibration. It's also intended as an educational tool to help consumers understand the basics of good video imagery.

On the other hand, Gregg Loewen, who helped develop the Spyder system, says it was designed for grayscale calibration as well. It has worked pretty well in his experience as a calibrator and calibration instructor, but he admits he has not tested it for accuracy lately.

I haven't used the Spyder3TV myself, but from what I've heard from most of my sources, it's not suitable for calibrating the grayscale of a TV. To get decent results in that process, you need to spend a lot more than $100 on a colorimeter, of which there are two types—tristimulus and spectroradiometer. A tristimulus colorimeter such as the Spyder3TV is sensitive to specific colors of red, green, and blue, so if a display uses different RGB colors, the meter's software needs accurate offsets to adjust for that.

On the other hand, a spectroradiometer is sensitive to a wide range of colors, which makes it generally more accurate with a variety of display types. The least expensive spectroradiometer is the X-Rite ColorMunki Display (seen here in its tripod mount), which costs around $500.

Of course, you can spend thousands or even tens of thousands of dollars on a spectroradiometer such as the Konica Minolta CS-200 and Photo Research PR-650 we use for our display reviews. And don't forget that a good grayscale calibration also requires some significant training to know what you're doing.

The good news is that many modern flat panels perform fairly well when you select the Movie or Cinema picture mode and adjust the brightness and contrast controls using a setup disc like Spears & Munsil's High-Definition Benchmark, Disney's Wow, or the THX Optimizer feature found on all THX-certified DVDs and Blu-rays. Optimizing these basic controls in the Movie or Cinema picture mode will usually get you better results than trying to do a full grayscale calibration with an inaccurate colorimeter.

Regarding the TC-P54G25 specifically, it has no Movie or Cinema picture mode when displaying 2D material; instead, it provides a THX mode, which should be the most accurate picture mode. (In 3D mode, THX mode becomes Cinema mode, and it cannot be calibrated separately.) Tom Norton reviewed the 50-inch version for Home Theater, and he found that the THX mode was surprisingly incorrect and could be improved with calibration; see his measurement and calibration results here. But I don't think you'll get the results he did using something like a Spyder3TV—the computer might indicate a good result, but the picture itself could well look worse.

If you have an A/V question, please send it to askscottwilkinson@gmail.com.

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COMMENTS
pfritts's picture

It would be great if these high priced instruments could be rented and then returned for someone wanting to try this without paying a professional.
But then of course you would have to get Calman (I wish I had it) and then a licence for the instrument to work with Calman.
And then you would have to learn how to use both of them rather quickly and hopefully not mess up anything in your hidden menus.
I have about every calibration or "set-up" disc you can get and love getting my TV's and all my friends and relatives' TVs looking great.
But I wish there was a more affordable way for ME to learn how to do gray-scale. Not knocking any professional calibrators and their infinite know-how, I just want to do it myself. Spectracal classes maybe?
However, discs like Spears and Munsil make TVs look so good anyways that I doubt most people would even notice that the color wasn't a hundred percent "D65." (Although I want it to be!)
Please keep up the great videos/podcasts on Twit! I love them. Now if you can just get TJ Norton to make a step-by-step video of him calibrating a TV for a review I would be in nerd heaven.
-Phil

BigMac's picture

Well, this is a coincidence. Just like you, I didn't want to spend upwards of $300 to calibrate my plasma so I bought the Spyder3TV colorimeter for the same Panasonic plasma TV (although mine is the 50in. version). I had used the Spyder2 colorimeter for my PC monitor and got good results so I thought this product would do the same for my TV.

The final settings made my picture look worse! The colors might be OK but the brightness and contrast levels are almost maxed out! This makes the picture look terrible with lots of artifact.

After using the Spyder3TV I tried to do a basic calibration of brightness and contrast using both the Digital Video Essentials DVD and the THX Optimizer on the Toy Story Blu-Ray disc. I could not get my Panasonic brightness levels adjusted to see the correct range of black bars.

It is possible I have a bad plasma but I don't know how to tell. I'm going to call Panasonic and discuss it with them.

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