I am not well versed at using the Data Color stuff and have a question.

In order to get accurate primaries from a 3 chip dlp a spectrum radiometere is necessary.

The DataColor folks at EHX expo mentioned that there is a $1,500 add on to it's system.

Can someone expound on this, and if it adds 1500 to the 3500 package aren't I better off getting a self contained photresearch unit that needs no pc. I am talking about calibrating the 3 chipper dlp only.


Thanks

http://www.photoresearch.com/current/images/pr680/680-corner-shot.jpg

ColorFacts supports a number of spectro photometers out of the box and requires no update to do this. Devices from Minolta, Photo Research and Gretag are supported.

The sales person perhaps assumed that you wanted to buy the Gretag Eye One Pro add on which is a pure hardware upgrade option.

I personally find built in measurement displays clumsy to use after becoming used to using software. The sort of analysis and reporting flexibility you can get from a combined hardware/software solution is hard to beat.

Neil

Not to mention, what Datacolor is asking for that piece of hardware is kind of ridiculous. You can get the eye-one beamer package that includes the eye-one pro for about $900. Don't know why they feel the need to mark it up that much.

Thanks Neil. But if you are just going to do TI p7 and brightness readings, the reporting is not really necessary. The TI P7 routine involves measuring the primaries at Native white on the Digital Cinema units, then the calibration is autoperformed by the projector to rec 709 anmd rec 601 which are preloaded in different memories, also I have heard that there are some exoctic s gamma curves that seem to be the state of the art for digital projection, which you load the LUT tables in the PJ and you are good to go.

Does anyone know how much the new photo research PR 680 is going on this days?

Does anyone know how much the new photo research PR 680 is going on this days?

Over $20000!

hi guys!

the Datacolor option is a custom made OEM product from GTM, it is not available by another method. When products are purchased directly from Datacolor you are also purchasing support and an all in one solution, including financing - if required (not to mention a customized aluminum carrying case :-) ).

One of the great things about ColorFacts is that if you purchase the software with the GTM spectro and then later decide you want a more accurate measuring device like the PR piece, ColorFacts will support the product. This means you only need to buy 1 piece of software.

Regards

Gregg

hi guys!

the Datacolor option is a custom made OEM product from GTM, it is not available by another method. When products are purchased directly from Datacolor you are also purchasing support and an all in one solution, including financing - if required (not to mention a customized aluminum carrying case :-) ).

One of the great things about ColorFacts is that if you purchase the software with the GTM spectro and then later decide you want a more accurate measuring device like the PR piece, ColorFacts will support the product. This means you only need to buy 1 piece of software.

Regards

Gregg

Thanks Gregg, please if you may be candid what is the color accuracy differential between your piece and the PR? 8 bit video , 10 bit video to 12 bit video?

Thanks Gregg, please if you may be candid what is the color accuracy differential between your piece and the PR? 8 bit video , 10 bit video to 12 bit video?
Not that I'm Gregg, but...

The GMB piece will sample in 10nm increments, where the PR6xx (650, 680, ...) and Konica Minolta CS-1000 both sample in 5nm increments. Both the KM and PR would be considered more "lab-grade" (vs. "field-grade") instruments. From a practical usage standpoint, the CS-1000 and PR6xx would be considered "top of the line" for field calibration. In between them and the EyeOne Pro, you have instruments like the KM CS-200, which, while a filter-based device, gives you the narrow sampling of the EyeOne Pro, with the dynamic range of a filter-based unit. Once you start adding options, the CS-1000 or PR-6xx will probably quickly push past $30k. The CS-200 will be about halfway (or less) between these and the EyeOne Pro.

One note on the Beamer model: the major reason to buy the Beamer is the carrying case and the tripod mount. For most of the modern, high performance digital projectors, you will most likely want to take readings directly from the projector using a diffuser (you infer the effects of the screen, depending upon software used). The Beamer tripod mount precludes the use of the diffuser, so we have found it to be of little value.

The bit-depth on the video signal will have little to do with the performance of the meter. You should be more concerned about the operating range (black level to white level) which you are likely to need to calibrate.

Bill

Not Gregg Either! But,

The PR-650 samples at 3.5 nm resolution, The PR-680 samples at 1.56 nm resolution, and the Minolta CS-1000A samples at .9 nm resolution. I own all but the PR-680 as it is was introduced earlier this year and runs $35,000.00 dollars. Since I have a CS-1000 and a PR-880 I really have no need for the PR680.

PR-650 Specifications:
http://www.photoresearch.com/current/pr650.asp?type=2
List Price: $14,000.00

PR-680 Specifications:
http://www.photoresearch.com/current/pr680.asp?type=2
List Price: $35,000.00

CS-1000A Specifications:
http://se.konicaminolta.us/products/display_products/cs_1000a/specifications.html
List Price: $25,000.00

Progressive Labs CA-6X software supports the PhotoResearch PR-650, Minolta CS-1000A, as well as the Eye-One Pro spectroradiometers. Our software package provides the professional calibrator with a fully featured Windows based software application which currently supports 15 instruments as well as both Accupel and Sencore pattern generators.

For addittional information on Progressive Labs visit our website at: www.progressivelabs.net

Not that I'm Gregg, but...

The GMB piece will sample in 10nm increments, where the PR6xx (650, 680, ...) and Konica Minolta CS-1000 both sample in 5nm increments.
Bill

Actually, the GMB with its 128 pixel diode array will also sample at 3.5 nm intervals, but its optical resolution is 10 nm, pretty close to the PR-650's 8nm.

Bear5K,

Wavelength resolution and spectral bandwidth are two different things . The spectral bandwidth is not the specification which denotes the smallest wavelength which the instrument is capable of resolving in a measurement!


Eye-One Photo Specifications:
http://www.gretagmacbeth.com/index/products/products_color-mgmt-spec/products_cm-for-creatives/products_eye-one-photo/products_eye-one-photo_details.htm

Bear5K,

Wavelength resolution and spectral bandwidth are two different things . The spectral bandwidth is not the specification which denotes the smallest wavelength which the instrument is capable of resolving in a measurement!


Eye-One Photo Specifications:
http://www.gretagmacbeth.com/index/products/products_color-mgmt-spec/products_cm-for-creatives/products_eye-one-photo/products_eye-one-photo_details.htm
Cliff - Read first, write second. ;) I made no such distinction for which you are taking me to task. I had tried to keep my own response at a reasonably high level. Differentiating between what the diodes are capable of measuring, vs. the optics, vs. how the data was output, etc., was not my intention.

Bill