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Guest Message by DevFuse

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DIRECTV 4k Ultra HD Channel Anticipation


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82 replies to this topic

#76 OFFLINE   Rockaway1836

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Posted 24 December 2012 - 06:01 AM

Pretty much as expected. Cool beans.

So back to topic...

In terms of anticipating a timeline for 4K HDTV (aka Ultra HD) - that specific question will be asked in 2 weeks at CES...and if any definitive information is presented...it will be shared.


Can't wait to read all the reports from you guys !

I don't think anyone has posted this yet.

http://www.engadget....k-10-bit-video/

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#77 OFFLINE   hdtvfan0001

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Posted 24 December 2012 - 06:08 AM

Can't wait to read all the reports from you guys !

I don't think anyone has posted this yet.

http://www.engadget....k-10-bit-video/

Yeah....we usually do some reporting from onsite each year. ;)

Neat linked info.

The part that soemtimes gets lost in the whole 4K HDTV discussion is the tech on the other side of the screen....the cameras, storage media, etc.

There's plenty going on with all that as well - more to seek and view at CES.
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#78 OFFLINE   SomeRandomIdiot

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Posted 25 December 2012 - 12:38 AM

!rolling

Yeah....uh huh....right...

Uh huh....sure...

Next we'll hear that since that gem of info was something found on the Internet someplace , it has to be true. :rolleyes:


Yup...and the ISF mandates those as required for more than 2 years now.

Thanks for adding some real information. :up:

Bottom line...all that other bogus stuff about 9' viewing for an 84" display is way out of reality.


Better check your information - Do yourself a favor and spend sometime on @ the Minolta Booth at CES.

The Minolta CS200 is a ColorMeter which sold for over $10k (it may still). However, Colormeters have proven themselves problematic on the different types of displays out today.

The Minolta CS2000 or CS2000a Spectroradiometer (the later can produce 1nm resolution) at a cost of well over $30k is what is respected today - not the ~10 year old CS200 or ANY colormeter.

And THX or ISF has NEVER required a Colormeter AND a Spectroradiometer. As a Spectroradiometer will blow away a Colormeter, there is no need.

I don't own a spectroradiometer. I only have a SpectraCal C6 with CalMAN 5. Which ain't too shabby...


And a $700 Colormeter is still not as good as a Spectroradiometer costing so many multiples of that amount.....

The Minolta's are high-end and highly regarded.


Yes they are.

It's refreshing to read something from an informed source posting here.


Read above and do some homework.

A Colormeter expects to find a certain value at a certain point. It measures how far those points are off from what is expected.

That was fine when CRT was the known output. Once CFL, Laser, Plasma, LED, OLED et al with different light signatures started coming out, the light source was producing a different spectral output and the values were not where they were expected with a colormeter. That is why a Spectroradiometer is a must today.

Just because a Colormeter looks for data at about 20 points on the spectrum, today's displays spectrum do not produce the same values in that spectral area and thus the Colormeter is often looking at the spectral area wrong area.

A Spectroradiometer with a 1-3nm resolution is a must. The CS2000 and CS2000a have that. A colormeter does not.

Edited by SomeRandomIdiot, 25 December 2012 - 12:53 AM.


#79 OFFLINE   SomeRandomIdiot

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Posted 25 December 2012 - 12:45 AM

Just using what the chart said and I didn't create the chart. It claims THX and SMPTE as sources.

Here is another calculator that I have used in the past.

THX, SMPTE, and visual acuity all say small numbers. These are respected sources - they aren't going to claim recommended distances that are grainy.

Don't shoot the messenger. My gut also says it sounds fishy.


No, the THX an SMPTE charts are correct and exactly what I was speaking of.

Any ISF or THX certified tech worth their salt would know about these.

They are exact specs for proper distance to screen size. While some may not personally like what the specs say, it is still the proper field of vision the images are shot and editted for.

However, it appears some think they know better than THX and SMPTE, which is laughable in and of itself.

#80 OFFLINE   hdtvfan0001

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Posted 25 December 2012 - 07:44 AM

They are exact specs for proper distance to screen size. While some may not personally like what the specs say, it is still the proper field of vision the images are shot and edited for.

The reality within the various posting banter and conflicting information is that in the end - there are no "exact specs" other than math computations - viewing is about the human interaction of visual presentations.

People's vision, hearing, and the environment (things like ambient light, brightness, contrast, color depth, screen reflection and angles, acoustics, etc.) all vary. Math can be used to compensate for variables...no doubt.

Why there may be preferred, recommended, and "in a perfect world that doesn't exist suggestions" for specifications...in the end..."your mileage may vary" is most appropriate.

Having significantly invested in 2 different certified sound and visual and audio engineers in the planning, design, implementation, configuration, and final "alignment and tuning" of a 6-figure THX-certified, rack-mounted 116" projection dedicated Home Theater, I appreciate and understand the value of these things better than most folks based upon real-world experience. Four (4) different high-end calibration devices were used to peak the video and audio. Both engineers, using different equipment at different times, agreed upon the final results. Thereafter, 2 adjustments were made - 1 audio and 1 video to suit viewer preferences.

All that said, while there is plenty of science in how the viewing experience can be optimized...personal taste (which may or may not "see or hear" things the same way) always trumps it in the end.

Circulating back to the topic at hand - 4K HDTV....if last year was any indication of what we'll see and hear from manufacturers in < 2 weeks at CES...there are some best practices, standards, and common traits already forming that will impact how it is delivered and viewed.

A number of us will be honing in on vendor booths to get the latest info on this topic - from advance indications, there will be more than 18 manufacturers representing 4K HDTV brands. Based on past years, there will likely be reports at DBSTalk about information learned onsite.

Season's Greetings.
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#81 OFFLINE   Scott Kocourek

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Posted 25 December 2012 - 09:09 AM

I'm looking forward to seeing one in person, *soon*. :D

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#82 ONLINE   Laxguy

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Posted 25 December 2012 - 11:06 AM

I'm looking forward to seeing one in person, *soon*. :D


What about the other 17?? :)

I, too am looking forward to it all!

And, as 'fan is saying, seeing is believing! Me, I've never had a professional adjustor near my house, and I am very happy with my Sammies' pictures. Yes, a bit of tweaking but very little needed for my taste. (What taste, you say??) :lol:

But I do know my luminance from my saturation, my pixels from my bit depth, and so on, probably due to immersion in digital photography over the last ten years.

Last but not least, a Merry Christmas to those who may be celebrating same.


Or if you prefer:



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#83 OFFLINE   hdtvfan0001

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Posted 25 December 2012 - 03:28 PM

I'm looking forward to seeing one in person, *soon*. :D


What about the other 17?? :)

I, too am looking forward to it all!

Seeing is believing. ;)

But Laxguy...

the rest of your post after "Or if you prefer:"

is ...

well...

!rolling

Thanks. :)
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