Originally Posted by hudsonkm
I've been looking around my area for an ISF expert here in the Chicago suburbs. The main issue I have is small anomoly's in geometry. Now, since I have a CRT do you as an ISF calibrator believe that despite it being a CRT that in most cases you can improve it at least somewhat?
I'm trying to decide if it would be worth it for me. It's quite possible Im just being overly zealous in the whole geometry perfection thing. This happens to be something I carried with me from my time in the USMC. At times, I can admit to myself that I'm just being anal about perfection. But it's hard for me to decide in this case since I am not an AV industry professional.
For the most part my 20hs420 is used for the xbox360 and as a secondary home dvd theatre setup. I tend to use our LCD for movies however, so the xbox 360 is indeed the only real concern in terms of this sets calibration.
Thanks in advance
Doc, I don't feel good, can you cure me? Fixing geometry on a CRT is an skilled art, full of compromise. Since it is all analog, absolute perfection just doesn't happen. It really depends on your specific issue. Problems with horizontal lines are generally a mechanical fix (service tech + magnets).
One thing to remember here is the purpose of the ISF was to optimize a given display to industry standards to enable you to see the picture as the director intended (common reference) with proper color, saturation, detail, yada yada, not to correct manufacturing errors and defects. There are many ISF calibrators that have the CRT background to provide additional or expanded service. My take on this situation is if there is a geometry issue, it probably existed from the beginning and should be corrected by the manufacturer under warranty. It is difficult, because the TV manufacturer makes no claims about perfect geometry or grayscale. They even boast about their dreadful edge enhancement features they design to boost sales to the unknowing public. Advanced geometry is not in the scope of ISF Calibrations, it is considered more of a repair (IMO).
There are so many things that can detract from viewing pleasure. This is one reason I never mention the silk-screen effect (SSE) to RP micro-display customers or point out dead pixels. Once you see them, you always see them, and it can ruin the experience.
Once the grayscale is correct and all other settings are calibrated, the picture on an Sony DA-4 display (main focus of this thread) is generally stunning, and it's easy to get wrapped-up in what you are watching, not seeing the flaws. Choosing to watch movies on an LCD TV, IMO, is a big compromise in its self..
I cannot say if I can fix geometry issues until I actually see the TV, then who knows.. In some cases, there could be a major magnetic interference in an area, creating external problems that cannot be fixed. There you would go with something other than CRT.
You are the only one to determine the value of the fix. I would say that if gaming is the primary use of the TV and you are focusing on geometry errors, you are not doing too well with game scores. Speed Bumps and bent lines are probably the two biggest issues for distractions for me (outside of SSE).