I just wanted to post my situation since it strikes me as a bit weird. I've got an older (1999) Philips SD-TV that I've hooked up to my computer via S-Video. Since I'm not yet prepared to access the service menu, I first made all the adjustments suggested by Mr. Huffman in the sticky about adjusting brightness/contrast/tint etc. The TV does not provide gamma or RGB correction, so this process only got me "part way." The gamma was still wrong, and the picture was still too cool, despite setting the menu option to "warm." My target is 6500k.
Since it's hooked up to the computer, I figured I could use my Spyder2Pro to calibrate it more precisely. Of course, these additional adjustments only take affect when using the computer as an input and the proper ICC profile is loaded. I'm OK with that. Additionally, I'm now aware of the Spyder2's limitations as a measurement device, and partially regret buying it, but it's also not that big a deal since I'm not exactly doing this professionally
Attached is the ColorHCFR file for my TV in its post-calibrated state. I'm generally quite happy with it, but there are some obvious issues, and a few questions I have that you all may be able to answer.
1) It'd be great to get the Red and Green to match the Rec. 609 reference more precisely. Is there any way to trick the Spyder2Pro software into doing that? It doesn't seem likely, since it's probably a hardware limitation of the TV--if red doesn't display properly, there's not really any way to correct it. I've already dialed down the brightness to Y=100, so the display isn't exactly "overworked."
2) In order to get the reasonably good gamma results (except at the highest end), I had to use the Spyder2 "curves" feature to define a custom gamma. Indeed, using "linear grayscale", resulted in a decidedly non-linear gamma. The gamma I'm using was slightly customized from linear to darken the low end (IRE 10/20). Otherwise, "linear grayscale" gives me a gamma of about 1.9 at IRE 10/20, 2.5-2.7 at IRE 40/50/60, and 1.9 at IRE 90. Is there any reason this would happen?
3) Perhaps most oddly, I configured the spyder2 software to calibrate for a white point of 0.316724, 0.345718. That's WAY off the desired 6500K standard, has a substantial green bias, and is a bit warm (6200K or so). BUT! Looking at the attached charts in ColorHCFR shows the results are reasonably good. Why would I have to calibrate for this bizarre white point to get a decent result in HCFR?
Thanks for any input! I've learned a lot from this forum, and am thrilled it exists.
Edit: Just realized I posted this to the wrong thread. Probably should be moved to the one dedicated to HCFR calibration files. Oops. <---- Noob. Sorry about that.
television.zip 1.8203125k . file