Mitsubishi Laservue

[nescosmo]

As you know I bought a Lasevue on the past month and I am very happy with the color and PQ. I bought a calibration disk at Compuusa, name compcare hdtv powered by Ovation and to tell you the truth to me it does not work. Can you tell me of a good disk for my L75-a91 laservue.

[MrBoylan]

Not sure what you mean by "it does not work." Consumer calibration discs simply generate test patterns and include instructions telling you roughly what the test patterns should look like. They do not do anything to your TV without your intervention. For a TV that expensive, a professional calibration is really a worthwhile investment.

It's not just the discs and test patterns that matter but the actual measurement equipment. A good colorimeter or photo spectrometer costs upwards of $10,000 (some are much more expensive), and the expertise to use one doesn't come cheap either. It requires training and experience.

Consumer calibration discs can help but they're not going to get you the same level of calibration that you'd get from a pro calibrator.

In terms of the consumer ones, "AVIA Guide to Home Theater" and Joe Kane's "Video Essentials" are two good ones. The Spears and Munsil test disc is also useful for testing the performance of a video processor in a TV or other video component.

-CB

[nescosmo]

Thank you for the advise. The L75 has has a built in ISF to aid the Professionals or for the more daring to tweak the ISF, but that is not for me. As far as I know there is no set of rules to calibrate this TV. Maybe you can refresh me on that subject or guide me.

[MrBoylan]

Thank you for the advise. The L75 has has a built in ISF to aid the Professionals or for the more daring to tweak the ISF, but that is not for me. As far as I know there is no set of rules to calibrate this TV. Maybe you can refresh me on that subject or guide me.

ISF settings on a TV are typically only lockable memory settings that allow the professional calibrator to set picture controls once (actually twice - usually once for a daytime lighting situation and once for night time viewing). Having an ISF setting on a TV doesn't necessarily mean that there are any more advanced controls available on the set. The ability to lock the settings prevents the end user (customer) from accidentally changing the settings after the calibrator leaves.

All TVs and projectors are calibrated roughly the same way: adjusting brightness, contrast, tint, color temperature, color level, sharpness and (in some cases) grey scale (via RGB cuts and gains) to get the most accurate picture. For the best results, you really need professional light measurement tools and professional software (with built-in test patterns) so you can get the most accurate settings. Sorry but I can't instruct you on how to calibrate a TV over a forum thread - the controls are a bit different from set to set and I've never tested nor calibrated a LaserVue RPTV. I will be spending 9 hours in a classroom tomorrow for a refresher calibration course offered by SpectraCal (the makers of calibration software). I've already been through ISF training and certification but that was a few years ago so I wanted to keep current just to stay fresh on the topic.

SpectraCal also offers "enthusiast" calibration courses, usually 2-3 hours in an evening so hobbyists and consumers can learn the basics of calibration. You can read more about this enthusiast calibration course on their web site:

http://www.spectracal.com/Enthusiast...onOutline.html

There's one being offered tomorrow evening in NJ. The full list of classes are listed here:

http://www.spectracal.com/video_cali..._bootcamp.html

SpectraCal offers software that can be used for consumer or professional calibration (in conjunction with measurement tools). A good consumer calibration disc includes demos and instructions that cover the basics of calibration and picture controls. So I would recommend picking one up, reading the manual and familiarizing yourself with the various controls and how they affect picture quality.

Regards,

-Chris

[louerhardt]

Chris,

Just wanted to say thanks for the good word. Feed back on that event was great!