{ "numMessagesInTopic": 4, "nextInTime": 688, "senderId": "JF39pN4NfJz371AQCJl1R1xpwSws-gXE4Plm7T05rzl3muMefGo7XVHqjun8Bu9zFZRIBDlBcWhv75Uft90DZUdyS5hDl2W4Aa6xBx17zA", "systemMessage": false, "subject": "Re: Card dependence of color calibration?", "from": ""fluppeteer" <yahoo@...>", "authorName": "fluppeteer", "msgSnippet": "Hi Yeang. ... *Nod* - sounds like you do have a calibration problem, but the blackest black the T221 (or most TFTs) can produce is always going to be brighter", "msgId": 686, "profile": "fluppeteer", "topicId": 680, "spamInfo": { "reason": "12", "isSpam": false }, "replyTo": "LIST", "userId": 192443393, "messageBody": "
--- In IBM_T2X_LCD@yahoogroups.com, "yeangchng" <yeang_chng@h...> wrote:
\n
\n> Thanks for the very informative reply, and sorry it took me a while
\n> to acknowledge it. I'm glad to hear that DVI output doesn't (or
\n> should not) vary from card to card, colorwise.
\n
\n:-) Glad it was useful to someone! (And I hope I'm right!)
\n
\n> However, I'm still
\n> struggling with whether to splurge on a Eye-One Photo to calibrate
\n> my entire photographic workflow, as my (unprofiled) printer has been
\n> giving prints that are significantly darker than the T221...
\n
\n*Nod* - sounds like you do have a calibration problem, but the
\nblackest black the T221 (or most TFTs) can produce is always
\ngoing to be brighter than black ink, even relative to the white
\nlevel.
\n
\nI've only got an Eye-One Display - my printer is uncalibrated,
\nother than using the manufacturer's settings and consumables,
\nbut should be less variable than the monitor(s) anyway.
\nAt some point I'll upgrade to one of the consumer inkjets with
\nintegrated calibration, so the Display colorimeter will do me
\nfor now.
\n
\nI'm a bit disillusioned with the whole colour calibration thing,
\nbut I'll give it another go soon. If you want a decent match, it's
\nworth doing *something* - and since TFTs tend not to (quite)
\nmatch CRT linearity, in spite of the best efforts of manufacturers
\n(and CRTs are only approximated by a simple curve anyway) it would
\nseem a colorimeter of some kind is the way forward. No reasonable
\namount of mucking about by eye is going to fix it. A colour
\nmanaged application may make a big difference too, compared to
\ntrying to hand-tune.
\n
\nI own Photoshop (CS), but I'm only an amateur wanting to avoid
\nwasting too much ink on duff prints. If you actually know what you're
\ndoing, I'll be glad to hear how you make things work; most of
\nmy knowledge is based on trying to read up on the theory, whereas
\nmost of the people I've spoken too seem to be of the opinion that
\n"it just works" and not want to go deeper.
\n
\nThe T221 is an astonishing device for looking at photos, but
\nits gamut is a bit limited. If you can find a way to make it
\nwork, I'd suggest a dual head setup, probably with a CRT as
\nthe second head. You may or may not ever be happy with the
\nT221's colour reproduction. Do let me know how you get on
\n(and if I can help)!
\n
\n> Did you have a chance to try out your MSI GTo's? I'm still wondering
\n> what the max stable refresh rate is, that you can get out of 2x
\n> single DVI links.
\n
\nErm. Tiny problem, which I'll share in case anyone else has it.
\n
\nGot my new K8WE motherboard. Switched it for the HDAMB and
\nVP990 combination I had before. Added my 6800GTo to a PCI-e
\nslot. Added my PCI nv5200 (to the only slot which will take
\nit, being a 5V card... anyone know any PCI graphics cards
\nwhich will run at 3.3V, other than Parhelias, so that I can
\nuse it in a PCI-X slot?) and realized the fan was pushing on the
\n6800. Didn't like that idea, switched to a Permedia (original)
\nPCI card, which Windows will only run in VGA mode (640x480
\n16 colour).
\n
\nI've got the 6800GTo doing 3840x2400 25Hz in horizontal span,
\nbut I can't get even 3840x2400 dual link single head at the
\nmoment. I'm going to try an older driver (I tried nVidia's
\nlatest), but it looks like I may have lost dual link support.
\nI've got a 6600GT on order so that I can see what I'm doing
\non the CRT while messing with the T221; hopefully that'll
\nhelp.
\n
\nI may be a little while... two Opteron 248s + two north bridges
\n+ a 6800GTo seem to kick out some heat. According to the card,
\ncase temperature was at 74 degrees with the card loaded, and I
\nstopped running demos when the card topped 105 degrees. My case
\nhas 11 fans in it - this shouldn't happen. I've got some water
\ncooling on order too...
\n
\n> Let me know if you get the chance to do the test.
\n
\nAs soon as everything is up and running again. *Sigh*.
\n
\n--
\nFluppeteer