Originally Posted by coolscan
You must distinguish between capture (film&digital) and delivery after post production.
Both film and digital capture format have low contrast regardless of resolution to capture as much dynamic range as possible.
Desired contrast and electronic sharpness is then added in post.
I agree that high contrast increase the perceived sharpness.
Low resolution, f.ex. 2K capture requires more added electronic sharpness added in post than capture done at a higher resolution.
5K or 6K capture for 4K or 2K delivery will have a higher organic sharpness and avoids the Edge Enhancement that we so often see in movies released on BD.
The reason for this EE is that previously one thought that 2K film scans and 2K cameras was sufficient for 2K delivery. When the material is authored for BD, the production people deem the material to be "too soft" and over-sharpens the material.
Now one has learn that film schould be scanned at 4K for 2K delivery and at least at 6K for 4K delivery.
The same with digital cameras that now have gotten sensors with higher than 2K resolution for 2K delivery.
That those cameras also will be used for up-converting to 4K delivery just show how little quality consciousness and care for image quality there are in the movie industry.
What I see complained about from people that work in the industry is that there are mostly stupidity, hearsay, fanboyism, incompetence and money that is the reason for choosing a capture format for a movie.
The choice of equipment based on the desire for the best technical Image quality capture and "future proofing" are more rare.
The 2K digital cameras does a lot of in camera processing (including electronic sharpening) before the images are stored on the capture cards/tapes.
This processing doesn't happen for 35mm film before post production stages.
That' why the 2K cameras can look sharper.
Similar to the 35mm film format happens to the digital RAW capture formats on those cameras that doesn't pre-process the RAW in camera.
Stating as you do; Have you seen much movies shot on Sony F65 (6K'ish) or Red Epic(5K) RAW properly processed, or film scanned at 6K, projected with the latest Barco or Christie Series-2 4K projectors (Sony 4K SXRD/Lcos is softer)?
I don't see the evidence at all in your estimates, because you forget an important point.
That is that IMAX titles usually are scanned at 8K and down-sampled to 2K.
Which shows that very high resolution capture matters very much compared to 2K capture.
By the way; Estimates done for 35mm capture film (not release prints) is that it has from 1.5 to 4 megapixel resolution, depending on type of film used and shooting situation.