FS7: cropped 2k vs 4k cropping in post

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Publimix

Veteran
When I see the footage of center scan 2K vs 4K 200% zoom image on my 4K television I see not much difference.

I saw this before, on my 4K television (with reading glasses) HD footage looks bad on it.


Any thoughts about this?
 
I went to a TV store and saw the 4K televisions with 2k or normal programs, looked horrible, worse than 720. The set in the store with 4K televisions and 4K footage looked 100 times better.

I think the televisions try (and fail) to upscale the HD images.
 
I'm not really sure what point you're trying to make with this thread, but I have a 4K Sony in my living room even though most of what I watch is HD. And I can tell you that HD & 4K both look fantastic on it. I won't say that HD on a 4K TV looks better than HD on a HDTV, but it certainly does not look any worse. Did it ever cross your mind that the store doesn't know what they are doing -- or is purposely making one thing look better or worse than the other just to sell stuff to ignorant consumers?

Also, today's TVs have so many menu settings for customizing the picture quality, scan rate, etc. that judging anything by what you see in a store is as useless as judging a camera by the default picture profile that comes from the factory.
 
Doug, or anyone, asking because I honestly don't know. Does the quality of broadcast HD(1080) material being shown on a 4K television rely on how advanced the upscaling method the set is using? Do some 4K TVs not upscale, just blow it up to fill the screen the same way a Mac Retina screen would treat say a 720 Quicktime file?

I helped install/connect a tv for my elderly neighbor who got convinced to buy a 4K set. He already had HD service but as I went through EVERY setting in the TV nothing I could do would help make a known HD channel not look like blown-up crap. I left defeated wondering if this is how all 4K tvs look like with HD material, I can't imagine that would be the case. I did shut off the devil cursed "motion flow" or whatever Samsung calls it that was of course set to ON by default.


Yes stores/manufacturers are famous for the worse in-store settings to "out do" the competitor next to them; hyper saturated color, sharpening, motionflow etc.
 
I don't know the technical method that an 1080P signal is displayed on a 4K TV, but all I can tell you is that it looks every bit as good as 1080P on an 1080P TV. Nobody would be buying 4K televisions if that was not the norm, so I can't say what is going on with your neighbor's television. Think about the outcry there would be from customers since there is almost nothing to watch in 4K yet, so everyone with a 4K TV is mostly watching 1080P and you don't hear complaints.
 
Absolutely agree Doug, if it looked worse people would freak. No idea what might be going on with my neighbor's set.
 
I still found some strange scaling effects with davinci resolve 12.3, a blackmagic capture card and a samsung 4K television. Sometimes the image on the 4K TV is blown up and ugly while the 'normal monitors' via nvidea card are crisp.

Importing 1080 in a 4K timeline gives a ugly result.

What I like from the cropped images is the better depth of field. I can use that extra sharpness with my a-bit-to-old nikkor 400mm 5.6 lens.
 
Publimix said:
Importing 1080 in a 4K timeline gives a ugly result.
Click to expand...

Of course it would look crappy because you're magnifying the 1080 by 200% or more. Anytime you scale any video image beyond 100% in post you're going to get diminished results, but I didn't think that's what this thread was about. Seems like you mixing apples and oranges.
 
The images looked not blown up, that would be logic, but it almost seemed blurred. (like a photoshop mosaic filter). And besides 1080 on a 4K screen does look normally good. I think it is some hardware setting. I will try to replicate it.
 
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