Thanks for the advice. Doing 21 point color balance and gamma is difficult especially on lower IRE. Pratically I had to redo dark reading for every step to ensure repeatability.

With OEMi1D, the reading is quite consistent and repeatable after profile against the i1Pro. I found out for Panasonic plasma for test pattern at 10 IRE and below, the ABL will auto kick in. You can see that the test pattern after few seconds will automatically dim down. With OEMi1D, I can read the value before it dim now which i1Pro can't due to longer time needed to get the avg reading. At 5% IRE, it measure 0.06 and can drop down to 0.02 after ABL kick in. It's kind of annoying as it is difficult to calibrate for an accurate gamma. ABL also kick in for 85% IRE. I believe that is the reason why previously I can get consistent gamma reading when the contrast is at 60 but once I increase it to 80 to boost light output, ABL will kick in. Only way to get a consistent reading is to use APL test pattern but the AVS 709 test patterrn only had 11 steps.

Yes. It happens with Lumagen test pattern and AVSHD test pattern. This is on PY800.

Well, it depends on the test pattern size. From the Lumagen test patterrn windows medium size, I can get around 26.7ft/L. Small size can go up to 35ft/L. You can see the fluctuation by leaving the test pattern on around 5 seconds for 10 IRE and below or 85 IRE and above. I check out in avsforum and seems like some of them also face the same issue on ABL (Dynamic Contrast that can't be defeated). Some suggest using APL windows to maintain the brightness level across the IRE but no conclusive result yet.

Redo the greyscale and gamma with Calman 4.4 RC1. 4.3.2 had a bug when using OEMi1D. Now the greyscale tint is no longer an issue except somewhere around 40 IRE. Will re-measure from 30 IRE to 50 IRE with i1Pro to verify the greyscale. Using smaller windows no longer trigger the ABL in higher IRE but the auto dimming at 10 IRE and below still happening.

From AVSforum, coderguy has a new projectorcalculator that also gives the fL figures for BEST MODE.
Usin it, it gives me 18fL for Best Mode, Lamp High.

In actual world, my fL dropped to 10fL after calibration.
If after calibration, the fL drops so much, what is the use of such a calculator sine the results are so far off the mark.

I assume most people will want to have their pj calibrated, but to lose so much fL to such low 10fL is something I am unable to reconcile.
The 'pop' in colours and image will be lost at such low luminence, even for a DLP, IMHO.

Guys,

Just got myself a 50" FHD plasma & am doing break-in. I'm trying to gather info on how to calibrate the tv later when i've reached say, 100h of playing break-in images.

Do I really need to purchase the calibration tools like mentioned by TS in the 1st page or can I just play certain images with series of colors like how to calibrate a PC monitor?

Your reply is very much appreciated, cheers

Guys,

Just got myself a 50" FHD plasma & am doing break-in. I'm trying to gather info on how to calibrate the tv later when i've reached say, 100h of playing break-in images.

Do I really need to purchase the calibration tools like mentioned by TS in the 1st page or can I just play certain images with series of colors like how to calibrate a PC monitor?

Your reply is very much appreciated, cheers

Thanks for the reply, that pretty much answer what I want to know.

Hmm, so I guess that brings me to another question, which method is more economical for calibration, 1) to get someone to do it or 2) to purchase the kit to DIY calibration?

I assume the latter method is for someone who wants to learn to calibrate themselves & probably gonna need to reuse the kit for 2nd, or 3rd or etc times which would then be more cost efficient, yes?

How much will the damage be to get someone to calibrate it? Will I still need to calibrate it later, as in when the tv (plasma) ages?

The problem with DIY kit is there is no gurantee a colorimeter will be accurate unless you can profile against a spectrometer. If you have few displays and had the time and money to invest in DIY calibration, then in the long run it would be economical.

But if you don't want to spend time to study on calibration then I would get someone with the skill and equipment to do it. You know who to contact, right?

hi bro, i was wondering, how much would it cos to calibrate a VT30 65 inch?

Pls PM me for calibration requests. I would like to talk about the technical aspects on this thread so that it does not violate forum rules.