CurtPalme.com Home Theater Forum

richmond5 · Joined: 17 Aug 2007 Posts: 48 Location: Toronto, Canada

LastButNotLeast · Joined: 15 May 2008 Posts: 13 Location: 08077

joikd · Joined: 22 Jun 2008 Posts: 4

I posted this in the AVS thread. Any help would be appreciated.

Has anyone had any trouble because of an anti-glare screen? I have a Mits. RPTV (65813) that I directly attached the Eye-One probe to the anti-glare screen. Well, the HCFR software is way off on color and tint. I ended up adjusting by eye with AVIA. HCFR showed me being totally off even though I know I was pretty darn close.

When I tried adjusting the primaries with my Lumagen HDP, I was unable to get the x/y's correct no matter what I tried. Again, I used AVIA for blue, red, and green saturation and hue, and just eyed-it. It came out pretty close, but HCFR said that it was way off.

Maybe I should try putting the probe on a tripod? It doesn't make sense to me to take the anti-glare screen off, do the measurements, then put the anti-glare screen back on. This would affect the picture. Correct?

The_Snowman · Joined: 15 Jun 2008 Posts: 4 Location: Saudi Arabia

...............where did you buy the X-Rite Eye-One Display LT ??? I was going to get it as recommended by the links to AMAZON but it comes up with this amazing quote for shipping?

Items: AUD 151.69
Shipping & Handling: AUD 157.24
Total Before Tax: AUD 308.93

CRIKEY !!! Shocked

What's up with that? Question

Any suggestions where to buy this in OZ??? Thanks, John

usul · Joined: 23 Jun 2008 Posts: 6

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Kal I think you should change the guide back again for LCD use for CRT front projectors it is causing a lot of confusion and even the HCFR guy I am pretty sure recomend useing LCD for CRT front Projectors. One reason is that not always does the sensor calibrate or read the CRT refresh rate of the Projecotr i have done many tests and its not conclusive I get about a 50% success rate in reading the CRT refresh rate. Also visually I get better results using LCD setting for front Projector CRT's Have you tried it Facing the PJ with CRT mode set and doing the greyscale? Doing it this way I also used the Diffusor, but I thinkl your original way using LCD no Diffusor is the most accurate.

Athanasios

The_Snowman · Joined: 15 Jun 2008 Posts: 4 Location: Saudi Arabia

**kal** · Posted: Mon Jun 30, 2008 2:16 pm Post subject:

Hey guys!

I've been playing around with a new software calibration tool over the last few weeks and like what a see! It's called:

Think of CalMAN as an interactive version of our Greyscale & Colour Calibration for Dummies guide: Instead of reading along in the guide you just run the software and push the buttons the wizard tells you to push! It's got a whole slew of other advanced features as well of course...

The good news: I've managed to get an exclusive deal with SpectraCal to bring CalMAN and their other products to our site at prices lower than anyone has ever paid anywhere, including off of CalMAN's own web site. Buy it through our links and you'll pay less than everyone else.

SpectraCal are also an OEM and reseller of X-Rite, makers of popular sensors such as the Eye-One Pro, Chroma 5, and Hubble. They're also available for considerably less than you'd pay anywhere else.

Derek Smith and L.A. Heberlein (the authors behind CalMAN) have agreed to be moderators of our Audio & Video Calibration Forum, ready to help out with your calibration questions.

Links:

CalMAN Video Calibration Software
Eye-One Pro Spectraradiometer
Chroma 5 Colorimeter
Hubble Non-Contact Laser guided colour meter
FAQ: Which meter is right for me?

Kal

usul · Joined: 23 Jun 2008 Posts: 6

**kal** · Posted: Fri Jul 04, 2008 2:07 am Post subject:

StephenDjordj · Joined: 08 Jul 2008 Posts: 1 Location: UK

Hi all.

Firstly a massive thank you to everyone who has contributed to this guide, the HCFR software chaps, recommendations for the Eye-One, the guys over at GetGrey and all at AVS and AV Forums - slowly but surely this calibration stuff is beginning to make sense. Hope I don't begin to test everyones patience and manage to stay on topic.

Had a few calibration attempts on the following equipment following your guide Kal - absolutely excellent - nothing made sense to me before this :

Pioneer 4280
Denon 2900 connected via component - 576p out
Eye-One Display 2
HCFR

I know this is generally a CRT forum so I don't expect specifics about the Pioneer panel.

Sorry about the next bit but just in case not many people have the Denon...............

The Denon has gamma adjustment. The vertical axis runs from 0 - 235 TV (digital RGB I think this is called). The horizontal axis runs 0 - 100 Disc (Wonder if this is IRE steps). There are ten divisions along the 0- 100 Disc line with each of these points adjustable up and down the 0 - 235 scale. The lowest can go to 16 and the highest to 235. The first six of these steps are bunched evenly across roughly 0 - 40 with the remaining 4 steps evenly distributed from 40 - 100. These divisions cannot be changed - only 16 -235 for each point.

I don't quite get the connection between performing greyscale adjustment and gamma adjustment (it's probably in the guide but I get so rammeled up I miss things that are obvious).

Question

What sequence would be best to follow - gamma first then greyscale (always changes the gamma) or greyscale first then gamma (seems to always change the greyscale)? Question

Haven't yet mastered submitting charts from HCFR but will practice if this would to understand what I'm asking.

Any comments I will do my upmost to follow and comprehend

Thanks chaps

[/list]

**kal** · Posted: Thu Jul 10, 2008 3:31 pm Post subject: Re: Gamma - when is best

dropzone7 · Joined: 12 Jun 2007 Posts: 1069 Location: Charlotte, NC

Wow, I tried the little video setup that comes on the Disney Blu Ray movies last night and with those flashing greyscale patterns I finally saw just how badly my HD Fury is clipping the whites and crushing the blacks. The effect on the white side is much more apparent and I can recover the blacks somewhat through gamma adjustment. I want to run through your guide once again Kal but I'm thinking it may be futile until I get a better HDMI solution like the XG-FULLHD card or the EXT-FULLHD box. It's funny that with DVE, Avia and everything else I have around here, it took this Disney video setup thing for me to finally notice!

rajdude · Joined: 10 Mar 2006 Posts: 65

Folks, I have tried to search but could not find the answer here.

What test disk to use for standard definition grayscale patterns?

I have the standard DVE but it does not have the full set of labelled grayscale patterns. 10% steps .
It only has a subset.

I have heard of Getgrey but the very first line on their website says:

garyfritz · Joined: 08 Apr 2006 Posts: 12088 Location: Fort Collins, CO

GetGray is IMHO the best SD calibration disk, certainly the best for setting grayscale. They say it's not for CRTs because it doesn't have patterns for checking for bloom, overdrive, things like that. It works great for grayscale.

rajdude · Joined: 10 Mar 2006 Posts: 65

Ok, Thanks Gary!

I just sent them the money. Lots of people say it is good, should be too! Very Happy

JTT · Joined: 19 Jul 2008 Posts: 5

Hi,

I am just about to but an eye-one LT to setup my Panasonic 50PZ70 Plasma using grayscale and colour calibration for dummies guide.

I have aquestion about which DVE disk to buy.

The Panasonic has different settings for SD and HD sources. Do I need to buy the Sd DVD and blu-ray version of DVE to setup my screen, or can I just buy the standard SD DVD version of DVE, and then upscale it to 1080p using my PS3 to do the HD calibration?

Thanks,

rajdude · Joined: 10 Mar 2006 Posts: 65

For HD, the DVE - HD blu-ray version is fine.

For SD, get the GetGray DVD. The SD version of DVE does not have all the test patterns needed for greyscale calibration.

From what I understand you will have to calibrate for both SD and HD sources.....seperately.

LastButNotLeast · Joined: 15 May 2008 Posts: 13 Location: 08077

JTT · Joined: 19 Jul 2008 Posts: 5

Thanks,

I'm a bit new to this calibration lark. Once I''ve done the calibration for Sd and HD, this will have calibrated SD and HD sources from my PS3 correct? But what about my Sky HD box, which is 75% of my viewing, will these settings be right for Sky source (through the same HMDI cable from receiver)

Cheers,