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'Greyscale & Colour Calibration for Dummies' Q/A thread
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Nashou66




Joined: 12 Jan 2007
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Location: West Seneca NY


PostLink    Posted: Thu May 08, 2008 1:00 pm    Post subject: Reply with quote


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I do it till the 2% bar is just visible. It will change after you start doing grey scale and you go back and forth a bit till"you" feel the blacks look good. At least thats how do it.

Athanasios

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kal
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Joined: 06 Mar 2006
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TV/Projector: JVC DLA-NZ7


PostLink    Posted: Thu May 08, 2008 6:55 pm    Post subject: Reply with quote

Spanky Ham wrote:
I get them mixed up. Is it Calman or Accucal? I know Jeff from Accucal posts over on AVS. You might send an email over to Greg Rogers of Accupel and Widescreen Review. I think he finally went digital last year, but he may still have his CRT.

I've been talking to Bill of CalMAN.

Kal

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Last edited by kal on Fri May 09, 2008 2:39 pm; edited 1 time in total
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delphiplasma




Joined: 06 May 2008
Posts: 14



PostLink    Posted: Fri May 09, 2008 11:23 am    Post subject: Reply with quote

Hi,

I think I may have mis-heard the commentator on the 'DVE' disc. I have now adjusted the first bar to become 'just' invisible.

I find the 'black level' deep enough, already without loosing shadow detail.

Thanks
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kal
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Joined: 06 Mar 2006
Posts: 17859
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PostLink    Posted: Fri May 09, 2008 2:48 pm    Post subject: Reply with quote

delphiplasma wrote:
Hi,

Just a quick question, regarding the setting of 'Black level' using the 'DVE' test pattern.

There are 3 stripes, One below video black, one just above video black and one for reference.

On the 'Dummies guide' it is suggested that the 'Black level' is adjusted so that the 1st stripe (Below video black) is invisible.
Now correct me if I'm wrong, but the commentator, on the 'DVE' disc, suggests that all 3 stripes should be visible!? the 1st stripe (Below video black) should just be barely visible. Have I heard this correctly? I am a bit mutton at the best of times!!

Thanks

Sorry I missed this! Athanasios is right: Adjust until the 2% bar is *just* visible. You don't want the below video black bar (-4%) to be visible at all, otherwise your black level (0%) will be too bright and blacks will look grey. The 4% is just there for reference as the 2% is sometimes hard to see.

Just do what I wrote in the guide. Smile (Which I just updated a bit to make sure that people understand how to set brightness a bit better).

Kal

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Andrew Low




Joined: 19 Apr 2007
Posts: 28



PostLink    Posted: Wed May 14, 2008 8:26 pm    Post subject: Reply with quote

Kal - tried to catch you via email too.. but will post here while it is on my mind.

Reading through the guide, it seems to recommend using the Spyder2 without the filter.
However, you also recommend using the LCD setting for measurements.

My experience (http://www.lowtek.ca/roo/?p=44) indicates that you probably want to have CRT mode if you are not using the filter.

Am I confused? Seemed pretty black and white to me.

Roo
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garyfritz




Joined: 08 Apr 2006
Posts: 12026
Location: Fort Collins, CO


PostLink    Posted: Wed May 14, 2008 8:39 pm    Post subject: Reply with quote

I believe CRT mode is intended only for when you place the Spyder directly on a direct-view CRT monitor.

I just did a test of my Spyder vs. a Minolta colorimeter, in LCD mode with the filter, and it matched the Minolta very well.
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warrick




Joined: 17 Jun 2006
Posts: 28
Location: Perth, West Australia


PostLink    Posted: Wed May 14, 2008 9:58 pm    Post subject: Reply with quote

Kal,

From the GREYSCALE CALIBRATION FOR DUMMIES guide
what does the following mean

Quote:
Simply blue it to the Spyder2 as follows:


Warrick
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kal
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PostLink    Posted: Thu May 15, 2008 1:00 am    Post subject: Reply with quote

That should be simply "GLUE" instead of simply "BLUE". I've fixed it already... (I'm the king of the typo's) Smile

Kal

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Joust




Joined: 05 May 2006
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PostLink    Posted: Thu May 15, 2008 1:27 am    Post subject: Reply with quote

typical engineer.
the spell checker missed that or it auto corrected it with an inappropriate word.
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MikeEby




Joined: 24 Jun 2007
Posts: 5238
Location: Osceola, Indiana


PostLink    Posted: Thu May 15, 2008 2:07 am    Post subject: Reply with quote

My grayscale has glue hump! Mr. Green

Mike

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LastButNotLeast




Joined: 15 May 2008
Posts: 13
Location: 08077


PostLink    Posted: Thu May 15, 2008 2:06 pm    Post subject: Reply with quote

MikeEby wrote:
My grayscale has glue hump! Mr. Green

Mike


But your grEyscale is perfect!
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kal
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PostLink    Posted: Thu May 15, 2008 8:01 pm    Post subject: Reply with quote

Greyscale, grayscale, colour, color... can't we just all get along? Smile

Kal

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johndal




Joined: 16 Sep 2006
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Location: Melbourne Australia


PostLink    Posted: Fri May 16, 2008 1:25 am    Post subject: Reply with quote

I am at the age where I can forget what I read walking from the PC to the HT, but I am having trouble printing the guide. Despite my best efforts at getting the printer to fit to the page in portrait mode I lose a portion of the RH side of the page.

Can it only be printed in landscape mode or am I missing something here?
John.
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kal
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PostLink    Posted: Fri May 16, 2008 3:37 am    Post subject: Reply with quote

You can cut and paste it any way you like into something like Word. I seem to have made the images too wide for the print feature to work nicely.

But I have to ask: Why is everyone printing this out? You need a PC to run the ColorHCFR software to do the readings, so simply have one window open with ColorHCFR and other open with the guide in a web browser. It has to be easier to read in the dark than printed paper, no?

Kal

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Gino




Joined: 22 Apr 2006
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PostLink    Posted: Fri May 16, 2008 4:39 am    Post subject: Reply with quote

Ahhh... you need to print with this Kal
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warrick




Joined: 17 Jun 2006
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Location: Perth, West Australia


PostLink    Posted: Fri May 16, 2008 7:47 am    Post subject: Reply with quote

Gino wrote:
Ahhh... you need to print with this Kal


Very cool Gino


Warrick
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kal
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PostLink    Posted: Fri May 16, 2008 2:08 pm    Post subject: Reply with quote

That is neat!

Kal

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LastButNotLeast




Joined: 15 May 2008
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PostLink    Posted: Fri May 16, 2008 2:59 pm    Post subject: Reply with quote

kal wrote:
You need a PC to run the ColorHCFR software to do the readings, so simply have one window open with ColorHCFR and other open with the guide in a web browser.


Because some of us have internet access at one end of the house and the "home theater" at the other.
I have HCFR on a notebook (an iBook, actually, about which I will some day speak at length); I'm sure others have done the same.

BTW, GREAT job with the Guide. Many, many thanks.

Michael
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kal
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PostLink    Posted: Fri May 16, 2008 3:08 pm    Post subject: Reply with quote

LastButNotLeast wrote:
kal wrote:
You need a PC to run the ColorHCFR software to do the readings, so simply have one window open with ColorHCFR and other open with the guide in a web browser.


Because some of us have internet access at one end of the house and the "home theater" at the other.
I have HCFR on a notebook (an iBook, actually, about which I will some day speak at length); I'm sure others have done the same.

Makes sense. I guess I figured in this day and age everyone had a $20 wireless router as I don't think any laptops built in the last 4-5 years come without wireless.

Kal

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garyfritz




Joined: 08 Apr 2006
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PostLink    Posted: Fri May 16, 2008 3:12 pm    Post subject: Reply with quote

So if you don't have wireless, do a File - Save Page As - Web Page, Complete (or however your browser does it). Then carry the laptop into the HT and view your saved copy of the guide.
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