Monitor calibration

[Michael Sacci]

There are SMPTE Bars built into FCP.

Found via google
https://www.synthetic-ap.com/products/tpm/index.html

well maybe not, not compatible with intel macs

[Pasi Koivisto]

Sorry, I should have been more specific. These test patterns are not for setting brightness/contrast/saturation but for setting gain/bias for RGB.

So, the patterns I need to create are 10-18% big windows on black with R, G, B, C, M, Y at 75% saturation with 2.22 gamma and at 75% luminance. If I understood the very elaborate excel sheet I have.

/Pasi
—
Editor, Colorist.
Mac Pro, 8×3 Ghz, 8 Gb ram, ATI Radeon HD 4870, KONA 3, Sony PVM20L4, Tangent Devices Wave.

[Doug Beal]

Just a thought but Kona3 Control>ist drop down to test pattern> load file

perhaps you could create the required colors in photoshop, monitor your scopes off the Kona until you’d dialed in what you need, and save those patterns.

guessing you don’t have a probe, and an autosetup kit installed in that monitor?

camera rental house close by with probes? Sony broadcast guy anywhere near?
that’s a pretty old monitor, may be time to retire it pick up an FSI

Doug Beal
Editor / Engineer
Rock Creative Images
Nashville TN

[Pasi Koivisto]

There is a probe for the monitor it’s just that the guy who’s going to do the calibration (isf certified) tells me that those are not good enough since they don’t correct for possible errors in the video chain and don’t account for the environment where the monitor is. Not sure if I really need the color patterns since my monitor can’t adjust colors, only grayscales for rgb.

/Pasi
—
Editor, Colorist.
Mac Pro, 8×3 Ghz, 8 Gb ram, ATI Radeon HD 4870, KONA 3, Sony PVM20L4, Tangent Devices Wave.

[Bob Zelin]

Pasi,
unless you are a professional color grader (color corrector), it is virtually impossible to adjust the bias and gain levels by eye. You are adjusting black and white balances, and without a calibration probe from Minolta, Sony, or others, you will just make your monitor look worse. You use SMPTE color bars (available in FCP) to adjust the normal brightness, contrast, phase (hue) and chroma. The bias and gain controls are used for black and white balance.

The PVM-20L4 (and the whole PVM line) was notorious for having black balance problems (the blacks have a green tint in them), and unless you have a probe, you will never adjust these out by just tweeking the bias by eye.

Bob zelin

[Pasi Koivisto]

Bob,
I do have a probe but it’s not good enough since it’s drifted a lot since I bought it but the certified calibrator who’s going to do the calibration has one. And I am pretty sure he re-calibrates his probe annually.

/Pasi
—
Editor, Colorist.
Mac Pro, 8×3 Ghz, 8 Gb ram, ATI Radeon HD 4870, KONA 3, Sony PVM20L4, Tangent Devices Wave.

[Joseph Owens]

[Doug Beal] “perhaps you could create the required colors in photoshop”

No. Never do this. For interformat conversion reasons this is completely unacceptable.

jPo

You mean “Old Ben”? Ben Kenobi?