Buying a new television is often fraught with difficulty. The vision you see on screen in the store showroom may look totally different when you take your new TV home.
Why? Well, a couple of factors come into play. In store, you're probably looking at a high definition feed (good) that has been split to display on multiple screens (bad). And often times, floor stock will have their picture settings cranked up to artificially high levels to stand out in the usually poor artificial lighting conditions in the store.
At home, with different input sources -- broadcast television, DVDs, game consoles -- different video connections -- HDMI, component, s-video and composite -- as well as different lighting and background environments, the images displayed on your new telly may not be what you expected. Fiddling with the contrast and brightness controls may help, but it can be a hit and miss affair. How can you tell which are the "right" settings?
Aaron Rigg, a display calibration professional from Avical Australia, says that ideally your television can be set to meet film and broadcast standards, developed by the Imaging Science Foundation (ISF), so that its displays the images exactly as produced and intended by the content's creators. Calibrating your screen to reproduce these standards in your unique viewing environment and accommodating the variations from your particular source equipment can have surprisingly impressive results.
In addition to optimising the display with correct colour reproductions for your equipment and room lighting conditions (professional calibrators will do both Day and Night settings), proper calibration will give you full detail with no artefacts in both the bright and dark areas of the picture. The result should be a more three-dimensional "immersive" viewing experience, with less eye fatigue as well as an extended lifespan for the display.
Watch this five minute video to hear Aaron Rigg clarify what ISF calibration is all about.
John
13/04/2007 11:57 AM
If you want to get free to air digital television, you have to have satellite to make it work clearly you know what I mean. How much will its cost to buy it because my old television make so much loud when changing channel therefore I don't no what wrong with it so please give me some advice about free to air digital television. thanks
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Captain
13/04/2007 11:33 PM
I found Aaron's explanation repetitive and uninformative. I work in the industry and he didn't hit any 'mark' I thought worthwhile. The people shooting the demonstration could have ensured the displayed image was at least colour balanced for the camera (the image has a blue cast) so all of that was lost. This was amply demonstrated by the (American) colour bars at the head of the demonstration. The Magenta bar looked distinctly Purple- a colour not represented in colour bars. The 'detail in the blacks' demonstration was not seen. A better demonstration would see Aaron tightly scripted with regard to Brightness, Contrast and Saturation. Overlays of these adjustments occuring would make the demonstration so much more interesting and useful. I may be contacted for further discussion. Captain Peter R. Miller
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Blinkster
03/06/2007 08:36 PM
Well.......as a consumer I found the video informative and well done. Aaron is a technician. Not a professional presenter. I thought he did well. I learned that I need to have my plasma screen calibrated and why. So I guess the video hit the mark!! Obviously some other professionals could make their own video's for us to critique and see just how professional they are.
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James50
18/01/2008 01:01 AM
Yeah, I as another consumer second that, Blinkster. He was helpful and humble, got the message across and answered all the questiuons I had about why I need to calibrate my TV.
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test
19/06/2008 08:10 AM
thank you so much for the explanation for me mostly an update in the terminology. ernie wachter n7sd@arrl.net
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