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720p, 1080i, 1080p can you tell a difference?

Koing

Koing

Elite Member <br> Super Moderator<br> Health and F
I got a new tv Th50PZ81, 50" 1080p panasonic plasma screen.

My viewing distance is about 3.5-3.7m at the most😛

My dad has last years 50" 720p version. I can't really tell the difference between them

PS3 > dads screen : 720p BR source Casino Royale
PS3 > my screen : 1080p BR Rouce Casino Royale

SKY HD > my screen : 1080i or 720p looks near enough the same as the 1080P BR film I have.

Is it really that different to you? I'm not viewing them side by side but the tv looks stunning to me. Everything looks great and I have my settings low for the first 100hrs or so. The blacks look really black to me and I'm really impressed by it 😀

I have fed stuff directly to the tv and currentl through an Onkyo 606 with it not upscaling.

Koing
 
I accidentally voted no on 720p to 1080p, but it should be a yes.

As far as 1080i to 1080p, I had to work on video quality for a while and can see interlaced lines quite easily
 
Can you tell the difference between a 1920x1080 picture and a 1280x720 picture? Well, duh, of course you can - one is much bigger than the other!

After your TV does a whole bunch of scaling and processing? Well, yes, but the extent is going to depend on the TV and source material. (If those two pictures were just black rectangles, you might not notice a difference, I suppose.) That's what makes this poll so bogus - a lot of it depends on the video processing being used.
 
ehh ... sitting 3.5 to 3.7M away from a 50inch, I probably wouldn't notice that big of a difference. You are only at an 18 degree viewing angle. (essentially, the percieved size of the screen is the same as sitting 5 and 1/2 feet back from a 24inch monitor)

To really notice the difference on a 50inch TV, you'd probably need to be less than 75 inches back. And realisticly, for a 50 inch TV, the optimal viewing distance is around65-75 inches or so. You want to be less than 6 feet back ideally.

If you are going to sit 3.5-3.7 meters back, then I would have as a minimum an 84inch display, though ideally a 102 inch display would work best.


So, no, if you sit too far away from your TV, you can't tell the difference in resolution.
If you sit the proper distance (as defined by SMPTE standard EG-18-1994), then you can probably tell as long as you aren't blind.
 
Only place I notice a real difference is when using the web browser on my PS3. That's just a basic function of the increased resolution. Other wise...eh...not really.

This was going from a 42" 720p plasma to a 46" 1080p LCD at about 7 feet viewing distance.
 
http://www.darkrealmfox.com/screenviewing.html

Hmmmm...Looks like I need to move my couch further forwards. The rooms 4x4m or 4.5x4.5. The other problem is that the screen is frigging high up above the gasfire place...but at least I can recline back.

It's 720P and 1080P on the 50" screen, not on different screens...I'll have to see about doing some blind tests on the screen to see if I can tell them apart. Sitting closer will help. I don't think I'm actually 3.5-3.7m back from the tv now come to think of it. I'll measure it out tonight.

Koing
 
no and anyone who thinks they can is fooling themselves. Too many people will spout off a bunch of numbers and distances and ratios. Sittiing the average difference most people sit away from the tv you can't see a difference.


That said I just bought a 1080p set because it is the way of the future
 
Can absolutely tell it's real easy on the 720 vs 1080 as the difference is huge. The difference between 1080i and 1080p is much more difficult to notice and you'll need a video source instead of film.
 
Originally posted by: Crucial
no and anyone who thinks they can is fooling themselves. Too many people will spout off a bunch of numbers and distances and ratios. Sittiing the average difference most people sit away from the tv you can't see a difference.


That said I just bought a 1080p set because it is the way of the future
Click to expand...

This post is ignorant beyond belief.

I can tell the significant difference between 720p and 1080p from normal viewing distances. 1080i to 1080p is a different question. But to claim that you can speak for everyone just because you don't see it is the height of ignorance.

And then the last comment - that you bought a 1080p set because it is the way of the future - is even worse. You bought a 1080p tv - which you just definitively said is indistinguishable from 720p - for no other reason than "it's the way of the future?" How ridiculous! If you can't tell the difference now (when the price difference is higher, by the way), how are you going to tell a difference in the future?

WOW. Just WOW.
 
Depending on the sharpness of your eyesight, most can distinguish (in A/B comparison) between a 720p and a 1080p on 50inch screen at regular viewing distances - all things being equal 1080p will look much sharper particularly in scenes with high details. Identify a 1080p set is more difficult.

The question of 1080i vs 1080p is content dependent. In fast moving scenes, like motor racing, the difference is easier to spot.
 
Also I wear glasses so that hacks down my vision so in order for me to tell the difference I'd have to sit closer.

I'm not watching between my dads tv and mine though. I guess it would be easier to tell but in a double blind test I wouldn't be able to tell personally.

Koing
 
Originally posted by: Rio Rebel
Originally posted by: Crucial
no and anyone who thinks they can is fooling themselves. Too many people will spout off a bunch of numbers and distances and ratios. Sittiing the average difference most people sit away from the tv you can't see a difference.


That said I just bought a 1080p set because it is the way of the future
Click to expand...

This post is ignorant beyond belief.

I can tell the significant difference between 720p and 1080p from normal viewing distances. 1080i to 1080p is a different question. But to claim that you can speak for everyone just because you don't see it is the height of ignorance.

And then the last comment - that you bought a 1080p set because it is the way of the future - is even worse. You bought a 1080p tv - which you just definitively said is indistinguishable from 720p - for no other reason than "it's the way of the future?" How ridiculous! If you can't tell the difference now (when the price difference is higher, by the way), how are you going to tell a difference in the future?

WOW. Just WOW.
Click to expand...

I would ask what tv's were you comparing and what was the feed going into the sets.

I'd be willing to bet that on 2 sets of the same size and quality from the same manufacturer with 1 being 720p and the other being 1080p there wouldn't be a "significant" difference between them. A vast majority of people wouldn't be able to see any difference between them.

As for buying a 1080p set, I went with an ED 42" plasma 5 years ago because that's what I could afford at the time and I couldn't stand the RPTV's (lcd, dlp or crt). I have been more than happy with the performance out of that set as HD looks fantastic on it. I can afford better now and wanted to make sure I could get the best picture for the money.

This is of course only our opinions and I couldn't care less what people buy or enjoy.
 
You can have a great 720p tv that look much better than a cheap 1080p tv. But of course you shouldn't compare it this way. With everything being equal (which is hard to achieve) I think I would have a hard time telling the difference at normal viewing distance. And of course when I hook up a htpc to the TV I'll see the higher resolution of 1080p.
 
Originally posted by: toslat
Depending on the sharpness of your eyesight, most can distinguish (in A/B comparison) between a 720p and a 1080p on 50inch screen at regular viewing distances - all things being equal 1080p will look much sharper particularly in scenes with high details. Identify a 1080p set is more difficult.

The question of 1080i vs 1080p is content dependent. In fast moving scenes, like motor racing, the difference is easier to spot.
Click to expand...

Not only that but the it's also dependent on what is doing the deinterlacing.

I doubt anyone here can say they can tell a difference between a 1080i native source and a 1080p native source. Why? Because there are no displays that can put out 1080i in a native format (other than CRTs, but who has one of those?).

The more appropriate question is can we tell a difference between 1080p material and 1080i material that has been deinterlaced? Again, being able to tell the difference is dependent on content and whatever is doing the deinterlacing. In addition, it may also be dependent on whether or not your 1080p display can do 1080/24 or not. If not, then the what you see may differ dependent on your displays 3:2 pulldown ability.
 
Originally posted by: toslat
Depending on the sharpness of your eyesight, most can distinguish (in A/B comparison) between a 720p and a 1080p on 50inch screen at regular viewing distances - all things being equal 1080p will look much sharper particularly in scenes with high details. Identify a 1080p set is more difficult.

The question of 1080i vs 1080p is content dependent. In fast moving scenes, like motor racing, the difference is easier to spot.
Click to expand...

Is there a link to some kind of study that says this? I can't recall ever reading any blind tests or studies saying either way.
 
Originally posted by: Crucial
Originally posted by: toslat
Depending on the sharpness of your eyesight, most can distinguish (in A/B comparison) between a 720p and a 1080p on 50inch screen at regular viewing distances - all things being equal 1080p will look much sharper particularly in scenes with high details. Identify a 1080p set is more difficult.

The question of 1080i vs 1080p is content dependent. In fast moving scenes, like motor racing, the difference is easier to spot.
Click to expand...

Is there a link to some kind of study that says this? I can't recall ever reading any blind tests or studies saying either way.
Click to expand...

A link is not needed if you can point out the 720p displays and 1080p displays just by looking at them at HDTV viewing distances. Personal experience is greater than what you read on the intarweb.
 
Originally posted by: spidey07
Originally posted by: Crucial
Originally posted by: toslat
Depending on the sharpness of your eyesight, most can distinguish (in A/B comparison) between a 720p and a 1080p on 50inch screen at regular viewing distances - all things being equal 1080p will look much sharper particularly in scenes with high details. Identify a 1080p set is more difficult.

The question of 1080i vs 1080p is content dependent. In fast moving scenes, like motor racing, the difference is easier to spot.
Click to expand...

Is there a link to some kind of study that says this? I can't recall ever reading any blind tests or studies saying either way.
Click to expand...

A link is not needed if you can point out the 720p displays and 1080p displays just by looking at them at HDTV viewing distances. Personal experience is greater than what you read on the intarweb.
Click to expand...

Well...a link certainly helps when the BS-meter is going off.
 
Originally posted by: Nutdotnet
Well...a link certainly helps when the BS-meter is going off.
Click to expand...

If one needs a link to confirm the difference of 1920x1080 and a 1280x720 then get your eyes fixed.
 
There is much more to it than the raw pixel density. Of course there is more detail in the picture of a higher resolution display. No one is disputing that. The point is that you can't easily distinguish that difference looking at a 27-58" tv set from 10 feet away.

It's similar to a 5mp camera compared to a 12mp camera. It will be hard to distinguish a real difference looking at a 4x6 or 5x7 print from both. If you look at a 16x20 print from both you will be able to tell a difference more easily.

This argument will go nowhere as it has before and will forever.
 
Originally posted by: spidey07
Originally posted by: Nutdotnet
Well...a link certainly helps when the BS-meter is going off.
Click to expand...

If one needs a link to confirm the difference of 1920x1080 and a 1280x720 then get your eyes fixed.
Click to expand...

Well senor spidey...I only state that a link is helpful because there's much more involved in picture quality than 720p vs. 1080p. Saying that one can see a difference between 1280x720 vs. 1920x1080 is a pretty naiive statement.

But you seem so sure of yourself...I'm not going to bother trying to educate ya. 🙂
 
Originally posted by: Crucial
There is much more to it than the raw pixel density. Of course there is more detail in the picture of a higher resolution display. No one is disputing that. The point is that you can't easily distinguish that difference looking at a 27-58" tv set from 10 feet away.

It's similar to a 5mp camera compared to a 12mp camera. It will be hard to distinguish a real difference looking at a 4x6 or 5x7 print from both. If you look at a 16x20 print from both you will be able to tell a difference more easily.

This argument will go nowhere as it has before and will forever.
Click to expand...

I don't know about you, but the year is about to be 2009. If you can't tell the difference between a 720 and 1080 display, more power to you. Get your eyes looked at if you can't.

The only reason this "argument" will go nowhere is because most folks don't know good video.
 
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