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Search: Posts Made By: randal_r
Forum: Display Calibration   07-22-2015, 08:24 AM
Replies: 0
Views: 98
Posted By randal_r
i1 Display Pro 3 - the missing #4 sensor

I have looked into the i1D3 and have come across a curious thing; a missing sensor. In the past I posted Connor Wolf's tear down of the i1D3 colorimeter. Between the time index 7:00 ~ 7:30 minutes,...
Forum: Display Calibration   06-26-2015, 12:56 PM
Replies: 52
Views: 939
Posted By randal_r
Thank you, I see were you are coming from. As...

Thank you, I see were you are coming from. As with any field of interest or industry, economics is one of the key factors in deciding which product is going to be purchased. If my goals are going...
Forum: Display Calibration   06-26-2015, 12:32 PM
Replies: 52
Views: 939
Posted By randal_r
Thank you for the reply. I agree with your...

Thank you for the reply. I agree with your philosophy.
Forum: Display Calibration   06-26-2015, 07:05 AM
Replies: 52
Views: 939
Posted By randal_r
Being true to my nature (questioning everything),...

Being true to my nature (questioning everything), I would like to pose a question. In the recent past I calibrated my Samsung s4 with the MobileForge app. Due to the lack of sufficient display...
Forum: Display Calibration   06-17-2015, 09:50 AM
Replies: 48
Views: 913
Posted By randal_r
The statistical rule is, "a small sample reflects...

The statistical rule is, "a small sample reflects the greater whole". There are also rules that govern how to conduct comparison analysis and the writing of the report of the aforesaid analysis.
...
Forum: Display Calibration   06-17-2015, 06:12 AM
Replies: 48
Views: 913
Posted By randal_r
This is a website that keep popping up it's ugly...

This is a website that keep popping up it's ugly head again and again. In the past this piece of information had been discussed to the point of heated discussions. Any high school student can point...
Forum: Display Calibration   06-12-2015, 11:45 AM
Replies: 50
Views: 2,123
Posted By randal_r
Interesting. I know the my AccuPel 5000 will...

Interesting. I know the my AccuPel 5000 will give me the most accurate video test patterns. Can you say the same about your DVD player or your Roku media player?

We can all agree, the better...
Forum: Display Calibration   06-12-2015, 09:26 AM
Replies: 50
Views: 2,123
Posted By randal_r
Setting 1 would be the accurate setting. This is...

Setting 1 would be the accurate setting. This is not the case for 2 & 3. Since the first thing that is calibrated within the home theater system is the display. After that each component can be...
Forum: Display Calibration   06-12-2015, 07:10 AM
Replies: 501
Views: 23,115
Posted By randal_r
The standard for commercial displays is REC-709. ...

The standard for commercial displays is REC-709. If you calibrate to a wide gamut, what are your primaries and secondary? What source are you using to generate the wide gamut color space for the...
Forum: Display Calibration   06-11-2015, 05:52 AM
Replies: 48
Views: 913
Posted By randal_r
Thank you for the response. I wasn't sure about...

Thank you for the response. I wasn't sure about the emissive aspects.

Thanks again.
Forum: Display Calibration   06-06-2015, 06:55 PM
Replies: 48
Views: 913
Posted By randal_r
I am one of the few who don't recommend buying...

I am one of the few who don't recommend buying such equipment from Ebay. You do not know how the product was treated before you got it. If by chance the meter was dropped, it is not worth buying. ...
Forum: Display Calibration   06-05-2015, 06:41 PM
Replies: 18
Views: 511
Posted By randal_r
You state that the thread is getting of topic. ...

You state that the thread is getting of topic. From the original posting the topic is very clear, "what is a spectrometer and how does it differ from a spectroradiometer?".
Forum: Display Calibration   06-05-2015, 06:59 AM
Replies: 50
Views: 2,123
Posted By randal_r
There is always two sides to a coin, as there is...

There is always two sides to a coin, as there is always two points of view to a question. Many times on the forums, such as this one, people express their emotions more than facts. Hence the...
Forum: Display Calibration   06-05-2015, 06:04 AM
Replies: 18
Views: 511
Posted By randal_r
Here are some websites that address the question;...

Here are some websites that address the question;

Link #1 (http://sensing.konicaminolta.us/2013/11/what-is-the-difference-between-radiometers-spectrometers-and-spectroradiometers/)

Link #2...
Forum: Display Calibration   06-04-2015, 01:28 PM
Replies: 50
Views: 2,123
Posted By randal_r
To give a different perspective, here is what ISF...

To give a different perspective, here is what ISF states about the subject. This is from their Level 2 presentation.
Forum: Display Calibration   06-04-2015, 07:24 AM
Replies: 13
Views: 385
Posted By randal_r
A good disc should be able to help you with...

A good disc should be able to help you with everything except the grayscale and the CMS. If you are looking at this a sideline business then expect to PAY. As a hobby, you should be able to do it...
Forum: Display Calibration   06-04-2015, 06:05 AM
Replies: 4
Views: 338
Posted By randal_r
By articles that I have read, the minimum speed...

By articles that I have read, the minimum speed should be 20Mbps. There is one calibrator who uses Microsoft's One Cloud which has a transfer rate of 15Mbps. When reviewing his videos there is an...
Forum: Display Calibration   06-03-2015, 03:48 PM
Replies: 42
Views: 704
Posted By randal_r
Hi Ted, Thanks for the quick reply. You...

Hi Ted,

Thanks for the quick reply. You never stop amazing me. Great info. Thanks again.
Forum: Display Calibration   06-03-2015, 02:17 PM
Replies: 42
Views: 704
Posted By randal_r
Hi Ted, I am glad to hear from you. You...

Hi Ted,

I am glad to hear from you.

You are very correct regarding the WTW and the BTB. I was just quoting the specs found regarding the ITU-R BT 709 which does state the 16 ~ 235 and seems to...
Forum: Display Calibration   06-03-2015, 01:59 PM
Replies: 13
Views: 385
Posted By randal_r
No one has the exact same physiological body, or...

No one has the exact same physiological body, or the exact same body chemistry. How many times do you go to the doctor and he will give you a prescription and say "If this doesn't work come back and...
Forum: Display Calibration   06-02-2015, 09:09 AM
Replies: 42
Views: 704
Posted By randal_r
Are you sure of your facts? The left pattern...

Are you sure of your facts?

The left pattern 6,6,6 is not below the black level. On PC's the black level is 0 and on video displays such as REC-709 the black level is 16. You need to study more....
Forum: Display Calibration   06-02-2015, 06:58 AM
Replies: 4
Views: 338
Posted By randal_r
The only difference between an HDTV and a 4K...

The only difference between an HDTV and a 4K display is "more pixels". Both sets use the REC-709 standards. Broadcast standards (satellite, cable or internet), is still REC-709. With Netflix the...
Forum: Display Calibration   06-02-2015, 06:19 AM
Replies: 13
Views: 385
Posted By randal_r
Of all the test discs filters that I have come...

Of all the test discs filters that I have come across I personally found the WOW filters to be the best. Most filters from some discs packages could be for REC-601 and and even if they are for...
Forum: Display Calibration   06-01-2015, 09:43 AM
Replies: 13
Views: 385
Posted By randal_r
Color filters are not recommended for setting...

Color filters are not recommended for setting tint. The recommended procedure is to use the display's own "Blue Only" mode. Filters are inconsistent in having the proper color. This is a well...
Forum: Display Calibration   05-27-2015, 06:04 AM
Replies: 5
Views: 229
Posted By randal_r
All in all, it looks good. Looking at the...

All in all, it looks good.

Looking at the CIE chart, I would suggest that you might try experimenting with the CMS controls. By this I mean, pick a color, such as blue, put up the CIE chart and...
Showing results 1 to 25 of 283

 
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