Roland.Online
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Not sure it's usual behaviour for avforums members to hijack threads, but as my previous thread has been by people wanting to debate the merits of calibration, rather than answering the original question, I thought provide this as a helpful starting point for anyone with an opinion about calibration.
Just to be really clear; what calibration is NOT:
There's nothing wrong with doing any of the above (well, maybe the first one!), but none of these things are calibration, and should never be called that. These are just adjustments, nothing more.
What calibration IS:
Go for it!
Just to be really clear; what calibration is NOT:
- adjusting picture settings by eye.
- copying settings from another TV (even if that was calibrated).
- using any number of basic setup procedures, including the PicturePerfect guide and those similar.
- using TV pattern discs/filters to adjust settings by eye.
There's nothing wrong with doing any of the above (well, maybe the first one!), but none of these things are calibration, and should never be called that. These are just adjustments, nothing more.
What calibration IS:
- a procedure involving input media and patterns specifically prepared to a known display standard.
- measuring various characteristics of the display using a suitable light measurement device, eg. colorimeter/spectrophotometer (ideally also calibrated!).
- using software to analyse the initial characteristics, and to quantify specific deviations of that display from the standard.
- applying a process of coarse and fine adjustment to the display settings to reduce the deviations and bring the display characteristics as close to the standard as is possible.
- and finally, because no [current] display is perfect, and can never match the standard exactly, providing an assessment of the final deviations, no matter how small: this communicates to anyone else familiar with the standard, how closely that specific display has been calibrated to that standard.
- this provides the end user and others a precise evaluation of the accuracy or errors of the display, and possibly the limitations of how the display can be adjusted.
Go for it!
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