OT: watching HD on an SD plasma

megabit wrote on 9/27/2009, 4:07 AM
I bought my first 42" plasma TV (800x480) 5 years ago - before any HD broadcast was available in Poland, and long before I started producing my own HD pieces... So it's been used in my living room, just as a TV set. I now also have a full HD 50" TV (by Panasonic, too) in my editing room, hanging above the desktop monitor, and used as the secondary monitor for Vegas, watching BD movies, and sometimes also HDTV broadcast I'm now having access to, as well...

After this too long introduction, to the point: if I said "sometimes" is because I have found (much to my amazement), that most HD broadcast actually look better on my SD plasma than they do on the FullHD one!

By "looking better" I mean both things than I can explain myself (like less grain, due to the smaller size/watching distance ratio), but also what I cannot understand at all: definition of the smallest details is actually sharper on the SD plasma, than on the HD one!

By "smallest details" I mean e.g. the individuals in crowds, watching football matches or other sports events, broadcast in HD. Another example - when watching background detail in a studio HD broadcast (like when talking heads are sitting in front of a window), I can almost read the licence plates of cars, passing by outside that window! All those details look so sharp as if they were drawn on a paper with a very sharp pencil...

It's not so on the full HD TV, and this I cannot understand. I don't use any additional edge sharpening (or other image "improvers") on either one...

Comments welcome,

Piotr

PS. Yes, I did some A/B comparisons with the same source (the only difference being the fullHD plasma is fed through HDMI, and the SD one - via Component).

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Comments

TheHappyFriar wrote on 9/27/2009, 4:26 AM
I was watching over the air HD friday night (USA) & noticed the compression was crap: it was washed out, pixelated around "sharp" objects (IE the CBS logo was pixelated), ghosting, etc. It's not the TV as I could switch to another channel & it's fine, it was that network. Or if I put in a DVD/BD it looks great.

So it could be just what you're specifically watching.
megabit wrote on 9/27/2009, 4:32 AM
Yes - but I said I did an A/B comparison.... I can add that I notice the same with my XDCAM EX material - not only HD broadcast.

I'm very curious about some rationale behind it!

AMD TR 2990WX CPU | MSI X399 CARBON AC | 64GB RAM@XMP2933  | 2x RTX 2080Ti GPU | 4x 3TB WD Black RAID0 media drive | 3x 1TB NVMe RAID0 cache drive | SSD SATA system drive | AX1600i PSU | Decklink 12G Extreme | Samsung UHD reference monitor (calibrated)

megabit wrote on 9/27/2009, 4:34 AM
Also, I realize some detail must be thrown away when displaying 1920x1080 on an 800x480 screen. It's just that what IS left, is actually sharper!

AMD TR 2990WX CPU | MSI X399 CARBON AC | 64GB RAM@XMP2933  | 2x RTX 2080Ti GPU | 4x 3TB WD Black RAID0 media drive | 3x 1TB NVMe RAID0 cache drive | SSD SATA system drive | AX1600i PSU | Decklink 12G Extreme | Samsung UHD reference monitor (calibrated)

farss wrote on 9/27/2009, 4:47 AM
Sharpness != resolution.

Took me a LONG time to grasp this. Look at an image from a large format film camera. It does not look sharp. Look at the same scene from a cheap point and shoot digital still camera and it looks sharper.

Bob.
megabit wrote on 9/27/2009, 4:55 AM
Sharpness != resolution

I guess all my above observations are a perfect proof of that, Bob :)

So, do you think it all boils down to the simple fact that (some) people like it sharp (regardless of the actual resolution), and thus it's pure aesthetics?

AMD TR 2990WX CPU | MSI X399 CARBON AC | 64GB RAM@XMP2933  | 2x RTX 2080Ti GPU | 4x 3TB WD Black RAID0 media drive | 3x 1TB NVMe RAID0 cache drive | SSD SATA system drive | AX1600i PSU | Decklink 12G Extreme | Samsung UHD reference monitor (calibrated)

farss wrote on 9/27/2009, 5:18 AM
"So, do you think it all boils down to the simple fact that (some) people like it sharp (regardless of the actual resolution), and thus it's pure aesthetics?"

I guess so. Despite the remarkably low resolution of a 35mm print (700 lines) the public are still paying to watch them.

Bob.