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March 3rd, 2006, 02:21 PM | #1 |
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Film Resolution
I know lots of people say it's hard to quantify the resolution of 35mm film given that it's composed of grains and not pixels but surely there is a resolution that gets printed when film is scanned digitally, when animation is done, when compositing is done, there surely must be a resolution frame size on the computer, so what it is? How many pixels is comparable to that? How many pixels are they working with on effects shots? How long before digital closes that gap? we HD people deal with 1920 x 1080, so what's 35mm film like?
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March 3rd, 2006, 03:06 PM | #2 |
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A 35mm print is regarded as having a horizontal resolution of 2k, very similar to HD. However, 35mm negative has a resolution of 4k, high end special Fx houses scan at this resolution to make their effects match seamlessly into the live action footage. Although most productions will just use 2k for their special effects and digital intermediates.
Dalsa makes a 4k digital camera with the intention of matching the quality of 35mm negative. |
March 3rd, 2006, 04:21 PM | #3 | |
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March 3rd, 2006, 06:03 PM | #4 | |
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The amount of resolution you require depends on how large you want to blow up your image. |
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March 3rd, 2006, 06:46 PM | #5 | |
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Before too long, though, data storage will improve in speed and capacity. My comment was just in examining the quality of a 2.5K imager that I have some experience in using. If I could shoot video of that quality I think I'd be happy. Now, I haven't seen output from my E-1 projected, but I have seen what large prints look like from both my E-1 and 35mm films I've shot and if that's any indication (and I'm going to assume it is) then I don't think it's going to take nearly as much resolution as film allegedly is capable of to make a very good replacement for film. |
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March 3rd, 2006, 07:02 PM | #6 |
Obstreperous Rex
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Moved here from the HD100 board (the topic is not specific to the HD100).
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March 3rd, 2006, 07:23 PM | #7 |
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quick quesiton
when transfering film to digital (such as 35mm film) to edit it. Is it edited in HD or full 35mm resolution? And if it is downconverted for post editing, then how is it transfer back to film without the loss of quality?
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March 3rd, 2006, 08:32 PM | #8 |
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If you are transferring film to video to do your edit, you can get a low-quality telecine done and then edit in any format you like - you could edit it DV if you wanted (Robert Rodriguez's first film was cut on 3/4 inch umatic machines). But if you ever want to go to film print you would eventually need to take your edit decision list and get a proper high definition telecine and Hd on-line edit, or an old fashioned neg-cut. Its possible to do everything in a fully digital environment but this is still very expensive, especially printing back to film at the end. Bring on the digital projector in all cinemas I say.
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March 3rd, 2006, 08:38 PM | #9 |
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I don't know what the term "latitude" means when referring to cameras. Is it synonymous with dynamic range?
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March 3rd, 2006, 08:47 PM | #10 | |
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The thing I'm having to adjust to with a digital TTL SLR is that I can't preview like with an electronic viewfinder to see what the exposure will look like before the shot is taken. I never thought that to be a problem with a 35mm SLR but with a cheap digital camera using the LCD screen, I could move the frame around to see the exposure I wanted, then press the shutter halfway to lock it there before I recompose. |
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March 3rd, 2006, 08:52 PM | #11 | |
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Believe me when I say the image captured by the Dalsa 4k is unlike any I've ever seen on screen. Kind of like when you heard a CD for the first time. It's sharp and grainless, but has the smooth look of film. Data storage methods and pipelines are only going up expotentially in speed and down in price, we'll see more RAW images being captured in the near future. I think for theaters to stay competitive with the home theater market, large format 4K or 8K is going to have to be the draw over just watching it in HD at home. |
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March 3rd, 2006, 08:55 PM | #12 | |
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As far as live preview on a DSLR goes, Olympus has out a model called the E-330 that offers live preview and now Panasonic is going to be coming out with their own version of the E-330 called the Lumix DMC-L1 that also has a Leica-licensed lens with image stabilization. You might take a look at those. I'm probably going to grab the Panasonic when it becomes available. |
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March 4th, 2006, 01:02 AM | #13 | |
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It's too late for me on your cam recommendations. I picked up a Canon EOS 350D Rebel XT with a 17-85 image stabilization lens. It's not bad, but no panacea if your subject is moving. Mirror lock-up would have been all it needs to preview the shot on the LCD. I could have had the Nikon D200 for just a few dollars more, awesome cam but a little big for what I wanted. I think the cam that would have been best for me just came out, the Sony DSC-R1 with the same 10mega pixel CMOS sensor they sell to Nikon for the D2S. It reported has an unmatched Zeiss lens and a reasonable price. The Canon I got may be the equal in some respects, but it's overpriced in my opinion, although it didn't stop me maybe it should have. |
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March 4th, 2006, 02:33 AM | #14 |
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When digital cameras came first came on the scene it was speculated that it would take about 9 megapixel resolution to rival 35mm film, but when we hit 5-6 megapixels a lot of photographers started switching from film to digital, and when we hit 11-12 megapixels some of them even put away their medium-format film cameras. For really large prints or maximum latitude film still has an advantage, but digital is cleaner and easier to work with and easier to archive, so it's pretty much inevitable that film is on its way out. Once movie theaters go digital there will be little reason to shoot film for any project with a finite budget, and even a $3K Sony FX1 records a decent HD image for the price.
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March 4th, 2006, 10:26 AM | #15 | |
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