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Why 4K quality ?
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Feb 7, 2019 19:33:19   #
ChristianHJensen
 
lamiaceae wrote:
The "standard" for judging still images is not via the monitor you view them on, HD or 4K or what ever, it is by a print of the image on photo paper, say an 8x10" to 16x20" from 300ppi to 600ppi. Ones camera of say 24MP far exceeds the quality or resolution of any Monitor. Again, I'm talking about STILL images. With my PP program Ps CS6 I can zoom in some 800% to 3,200% to clearly see individual image pixel cells as a grid as they are displayed on my 22" standard Monitor, but then you don't see a picture but squares. So one usually checks for sharpness at 100% to 200% only. Of course what is viewed is still made up of "monitor" pixels.
The "standard" for judging still images ... (show quote)


There is no "standard" - especially not these days. My guess is that less than 1% maybe even less than .1% of pictures today EVER get printed on paper - most get viewed electronically only. The world of photos have changed radically

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Feb 7, 2019 19:41:38   #
ChristianHJensen
 
cambriaman wrote:
From what I have read using a 4K monitor to view video needs for the monitor to be 65 inches or more for the full effect of the 4K resolution to be gained. That just doesn't work for almost all of us sitting at our computers watching UHH.
My home is mid-century modern (lots of glass in every room) and has almost no place to mount anything larger than 48 inches where it was be comfortable to view (our 42 inch is mounted above the fireplace). Yes, I could put a 65 inch screen in our bathrooms but we would be standing within 4 feet of the viewing surface. Hardly a viable choice. Small screens process down the image size resolution to fit the screen area. So in my case no matter the resolution of the input image it ends up 1080 resolution.
From what I have read using a 4K monitor to view v... (show quote)


Not even close. a 27-32" monitor is by far better in 4K than 2K - I would say even a 24" is noticeable better in 4K than 2K. Hell even the 15" 4K display on my laptop is striking compared to a 2K laptop.

the optimal viewing distance for a 4K display is about the dioagonal size so for your 42" TV is actually best viewed at a 3 1/2'-4' distance. For 2K monitors/TVs the ideal viewing distance is about 2x the diagonal

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Feb 7, 2019 21:05:39   #
Properframe Loc: US Virginia
 
Some important photography related stats to consider are the % of the color gamut the monitor can exhibit, the bit depth ie 10 bit (the colors displayable ie 1 Billion), the brightness, the contrast ratio, In-Plane switching. The 4k is not the end all answer but what you may find is that to get the other specs you will end up with a 4k monitor. Sort of like you want a fast sports car but cloth seats - you have to take the leather because they all come with. And be prepared when you get the monitor and review some of your old processing you will want to smack your forehead when you see an accurate rendition of what you thought looked good before. You will have to go back and have another go at them.

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Feb 7, 2019 21:13:46   #
therwol Loc: USA
 
ChristianHJensen wrote:
That is scaling of menus for readability (size purely)- doesn't affect the resolution of the display at all


The point was that if you have a relatively small display and can't read anything on a 4K display, Windows will magnify everything so you can. Of course, it doesn't affect the display resolution. Even on this 27 inch monitor that I'm using, I can't read anything comfortably without adjusting the scaling. They're putting 4 K displays on laptops. Why? Because they can.

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Feb 8, 2019 08:21:36   #
Tomcat5133 Loc: Gladwyne PA
 
A few years ago a friend who is a DP cinema shooter got the Red Camera. I played with it and
it had great dynamic range and a crisp picture. For his work it was great.
I shoot video now and have no use for 4k. The files are bigger. My editing Final Cut Pro X
is pushed to the extreme. I see it as looking over sharpened at times. For feature films and
commercials it is very useful. A producer can reframe a crop in on a shot in a edit.
When I first saw HD in a store I was impressed. Where this is going I dont know.
I like good 10 bit footage like Sony's hybrid video settings.
It will not go away. Some people want the picture for their TV viewing and gaming maybe.
Most of my video production now winds up on the internet.
Having it in your camera just makes it more valuable.
What interested me was 4k frames pulled off of a high end camera. Some cameras now
have the ability to pull frames off of the footage. I screen grab all the time and just the
frames that are good for PR releases by clients.
Good luck.

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Feb 8, 2019 09:03:26   #
MiroFoto
 
I would like to thank to all of you who tried to educate me.
However nobody answered my $$ question:
Will I get a 4K resolution on 4K monitor from the computer having HDMI 1.4 output?" (do I have to have HDMI 2.0 ?

I have read that it is good for photos & videos 30 fps , but not for films & videos 60 fps. ????
I understand the graphical card is important ...but sellers say HDMI ...no further spec . I do not need a special hi speed gaming laptop . Only 4K output to external monitor .

I also think the color is dependent more on Monitor quality than the card. ( I do not need the scientific % gamut details...just the practical shot) I will use it for wieving , not a serious work.

Thank you

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Feb 8, 2019 09:13:55   #
ERay
 
One reason some shot 4K video is that it allows you to crop in video processing and still produce 1080 or 720 output video. You can even fake a 2 camera shot this way. If you have a shot with two people talking to each other, you can use one 4K video camera and have them face each other. You can frame the shot with them on opposite sides of the frame. You can then cut from one to the other simply by cropping and have no audio sync problems.

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Feb 8, 2019 09:25:18   #
boberic Loc: Quiet Corner, Connecticut. Ex long Islander
 
MiroFoto wrote:
I am asking the UHH friends to help me answer one basic question. So far I have spent hours searching for a new lap top and with the help of one member I got the idea - selection done , credit card is shivering.
Those of you who are married know who is asking me this question.

I am not a photographer (all my pictures are lousy) and I do not do any Photoshop edit), but I enjoy looking at UHHs shots.

My camera is Nikon 7100 so its quality deserves good 4K review, BUT all the pictures from e-mail, F-book and even UHH postings are less than 4K quality , right ? Unless I ask that individual shots are sent to me compressed/reduced, I actually will not need 4K, correct?

So would you let me know what else do I get in the 4K? It will help me to justify the extra $$ spent. PS: I do not watch movies nor play the video games. Maybe there is a source of quality photographs to see.

Thank you for your input Miro (Miro's wife)
I am asking the UHH friends to help me answer one ... (show quote)


When my HP computer died--they don't like to be dropped-I replaced it with a Dell Inspiron. Lighted keyboard-touch screen-8Meg 1 Tb hard drive- $550. I love it. so does the wife. Is it perfect, no --If you are looking for a laptop, this one is hard to beat- You have to spend a lot more to beat it.

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Feb 8, 2019 10:06:15   #
therwol Loc: USA
 
MiroFoto wrote:
I would like to thank to all of you who tried to educate me.
However nobody answered my $$ question:
Will I get a 4K resolution on 4K monitor from the computer having HDMI 1.4 output?" (do I have to have HDMI 2.0 ?

I have read that it is good for photos & videos 30 fps , but not for films & videos 60 fps. ????
I understand the graphical card is important ...but sellers say HDMI ...no further spec . I do not need a special hi speed gaming laptop . Only 4K output to external monitor .

I also think the color is dependent more on Monitor quality than the card. ( I do not need the scientific % gamut details...just the practical shot) I will use it for wieving , not a serious work.

Thank you
I would like to thank to all of you who tried to e... (show quote)


I don't see that you asked that question. You can get 4K output from HDMI 1.4 with limitations, including color bit depth.

From the article in the link. https://www.digitaltrends.com/home-theater/what-is-hdmi-2-0/

"HDMI 1.4 supported 4K resolutions, yes, but only at 24 or 30 frames per second. That works fine for movies, but isn’t useful for gaming and many TV broadcasts, which require 50 or 60 fps. Also, HDMI 1.4 limited 4K Ultra HD content to 8-bit color, though it is capable of 10- or 12-bit color. HDMI 2.0 fixed all of that because it could handle up to 18 gigabits per second — plenty enough to allow for 12-bit color and video up to 60 frames per second."

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Feb 8, 2019 11:57:26   #
MiroFoto
 
therwol, Thanks for the article and some explanation which brought one more question....and I am done.

If 1.4 HDMI supports / limits the color spectrum to 8 bit, do I really need more? I guess TVs are 8 bit machines. But I will NOT care about this. My ONLY concern is that I may limit 4K monitor when watching Photos. - in practical way . I will be watching, not tweaking and requiring 100% Gamut like profi photographers.

If I have to have 2.0 , so bee it. If I do not need it -good. I just do not want to spend $ on monitor and not being able to utilize it .

I hope this time I asked right.....

Thanks

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Feb 8, 2019 12:50:29   #
ChristianHJensen
 
MiroFoto wrote:
I would like to thank to all of you who tried to educate me.
However nobody answered my $$ question:
Will I get a 4K resolution on 4K monitor from the computer having HDMI 1.4 output?" (do I have to have HDMI 2.0 ?

I have read that it is good for photos & videos 30 fps , but not for films & videos 60 fps. ????
I understand the graphical card is important ...but sellers say HDMI ...no further spec . I do not need a special hi speed gaming laptop . Only 4K output to external monitor .

I also think the color is dependent more on Monitor quality than the card. ( I do not need the scientific % gamut details...just the practical shot) I will use it for wieving , not a serious work.

Thank you
I would like to thank to all of you who tried to e... (show quote)


HDMI 1.4 supports 4k 8 bit color at 30 fps max

If that was all you needed to know - try google instead of UHH - you will get the answer without all the unrelated (and many uninformed) comments

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Feb 8, 2019 20:32:13   #
lamiaceae Loc: San Luis Obispo County, CA
 
ChristianHJensen wrote:
There is no "standard" - especially not these days. My guess is that less than 1% maybe even less than .1% of pictures today EVER get printed on paper - most get viewed electronically only. The world of photos have changed radically


Then you can't say your image is even worth viewing on an analog tube TV. Most "photographers" today are not artists. True few people print gallery prints, but some do. Some of us have "standards" for all sorts of aspects of photography. As some have pointed out you need a monitor with as close to 100% RGB as possible.

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Feb 8, 2019 21:15:28   #
therwol Loc: USA
 
MiroFoto wrote:
therwol, Thanks for the article and some explanation which brought one more question....and I am done.

If 1.4 HDMI supports / limits the color spectrum to 8 bit, do I really need more? I guess TVs are 8 bit machines. But I will NOT care about this. My ONLY concern is that I may limit 4K monitor when watching Photos. - in practical way . I will be watching, not tweaking and requiring 100% Gamut like profi photographers.

If I have to have 2.0 , so bee it. If I do not need it -good. I just do not want to spend $ on monitor and not being able to utilize it .

I hope this time I asked right.....

Thanks
therwol, Thanks for the article and some explanat... (show quote)


I seriously doubt if there would be any limitation on static images. I believe the 8 bit limitation only applies to certain kind of video.

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Feb 9, 2019 01:51:28   #
ChristianHJensen
 
lamiaceae wrote:
Then you can't say your image is even worth viewing on an analog tube TV. Most "photographers" today are not artists. True few people print gallery prints, but some do. Some of us have "standards" for all sorts of aspects of photography. As some have pointed out you need a monitor with as close to 100% RGB as possible.


I am not what point you are trying to make here. Analog tube tv is pretty low resolution - highest tube TVs were 720P certainly not enough resolution for showing photos - unless the screens were tiny. Off course you need a full color gamut if you want to view photos as there are supposed to look

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