Charles Bober
Stunt Coordinator
- Joined
- Sep 5, 1999
- Messages
- 199
Bill,
Which theater are you attending?
Which theater are you attending?
Similar to sharpness, but distinctly different, is resolution - or the ability of an imaging system to sense and reproduce fine detail. Today's highest resolution motion picture film scanners are able to extract over 12 million pixels of information from just one frame of 35mm film...and this is limited only by the capability of the scanning device.
You can also examine this from a sort of a "z" direction, which is the bit depth of information. Film's tone scale is closely approximated in today's high-end digital scanners by 14 bits linear or 16k discrete levels.
On the other hand, even with the highest definition cameras available today, the chips in digital video cameras are offering something in the order of 1920 by 1080 or about two million pixels of information per frame. Sometimes this is translated as eight bits of information, sometimes as 10 bits representing tone scale or 1024 discrete levels. No matter what the formula, today's digital video image contains far fewer pixels, with a substantially restricted bit depth, translating into significantly lower resolution.
Thus film capture and high resolution scanning results in much more original scene detail and information than digital video capture systems today. Remember: sharpness does not equal resolution.
Regarding image data file size comparisons, this information is available from all manner of industry sources, and those numbers are referenced quite widely in articles and popular discussion. You are most likely to find image data file size information from post-production resources. A typical 35mm full aperture 4K resolution telecine scan is often in the 40MB range (limited by the scanner). It's a bit harder to find online information regarding the 1920 x 1080 HD frame equaling ~5MB, but here is one page with some correlating info:
http://www.accom.com/products/disk_capacity.html
Sony technical pages on the F900 may reference that as well.
I saw AOTC at the Crown Annapolis theater. The presentation was great! I wish there was digital theater closer to DC, but the drive was well worth it. I was looking for rainbows and decreased black levels, but I didn't notice anything strange. To me, it looked like a clean film print. The sound was also excellent.
There is a DLP theater a lot closer than Annapolis: the Lee Highway Cineplex in Merrifield, VA. It's where Gallows Road meets Lee Highway right off the Beltway. I saw AOTC there in DLP and at the Hoyt's 22 in Alexandria, which is, as cineplexes go, a pretty good theater. There was no comparison. For AOTC, digital is the way to go.