![](templates/drizz/images/forum_logo_1.gif) |
|
![This topic is locked: you cannot edit posts or make replies.](templates/drizz/images/lang_english/reply-locked.gif) |
View previous topic :: View next topic |
Author |
Topic : "2 questions (about movies)" |
Yarik member
Member # Joined: 11 May 2004 Posts: 231 Location: Russian/Ukrainian American in California
|
Posted: Thu May 11, 2006 12:39 pm |
|
![](templates/drizz/images/hrline.gif) |
1)
I've noticed time and time again, that when you watch a movie, you can actually tell it is a movie. Because it doesn't scream "I made this movie on a cheap digital camera" kind of thing. It has nothing to do with professionalism. It's just the way movies and TV shows look is different than what a regular camera would do. Does anyone know what it is??
2)
Am I a virus? I started using this new google thing called "trends" which allows you to track trends in searches, and after a couple of searches it now says this "Your computer shows aspects of an infected computer. We are sorry for the inconvience but your access will be regainst quickly as possible." What the hell? Since when do I act like a virus?? |
|
Back to top |
|
balistic member
Member # Joined: 01 Jun 2000 Posts: 2599 Location: Reno, NV, USA
|
Posted: Thu May 11, 2006 1:24 pm |
|
![](templates/drizz/images/hrline.gif) |
1) films are shot at 24 frames per second, non-interlaced. Video is usually 29.97 frames per second, interlaced. Your brain can tell the difference. _________________ brian.prince|light.comp.paint |
|
Back to top |
|
eyewoo member
Member # Joined: 23 Jun 2001 Posts: 2662 Location: Carbondale, CO
|
Posted: Thu May 11, 2006 1:56 pm |
|
![](templates/drizz/images/hrline.gif) |
I disagree about the professionalism ... professional cinematographers are composional gurus and movies are highly directed, so what you see is generally quite different - i.e. steady, beautifully composed, and edited professionally to essentially put the visons in your head... they come to life... and rise above the media if they're good ... ![Smile](images/smiles/icon_smile.gif) |
|
Back to top |
|
Domino Harvey junior member
Member # Joined: 19 Mar 2006 Posts: 37 Location: Winnebago in the Nevada desert
|
Posted: Thu May 11, 2006 5:12 pm |
|
![](templates/drizz/images/hrline.gif) |
eyewoo wrote: |
I disagree about the professionalism ... professional cinematographers are composional gurus and movies are highly directed, so what you see is generally quite different - i.e. steady, beautifully composed, and edited professionally to essentially put the visons in your head... they come to life... and rise above the media if they're good ... ![Smile](images/smiles/icon_smile.gif) |
This is true, but i think balistic's answer is the most direct in why we can discern an actual film from other things from the get-go. The 24 FPS is a big difference. _________________ Heads you live
Tails you die |
|
Back to top |
|
Sumaleth Administrator
Member # Joined: 30 Oct 1999 Posts: 2898 Location: Australia
|
Posted: Thu May 11, 2006 6:15 pm |
|
![](templates/drizz/images/hrline.gif) |
I've often wondered the same thing.
The FPS sounds like a good candidate. Interlaced 29 fps is effectively 58 fps non-interlaced. Higher FPS sounds like it should be "better", but I suppose the difference is in motion blur -- images captured at 24 fps will have a lot more motion blur.
On top of that, real film stock captures a much richer range of colors, particularly in the darker ranges.
Film also has a noise/grain to it which is absent from video/digital-video. It can be artificially added, though perhaps the artificial grain never fully captures whatever it is about film grain that contributes to the look. _________________ Art Links Archive -- Artists and Tutorials |
|
Back to top |
|
Impaler member
Member # Joined: 02 Dec 1999 Posts: 1560 Location: Albuquerque.NewMexico.USA
|
Posted: Thu May 11, 2006 11:59 pm |
|
![](templates/drizz/images/hrline.gif) |
Actually, I would guess that it's less about framerate and more about tonal response curves and pixel size. A still made from a video looks different than a still made from film.
Film has a logarithmic response curve, while video has a linear curve. In short, this means that while film and video may have the same dynamic range, video highlights start clipping a couple stops about middle gray. This defect is present in all digital and video cameras, from 1980's camcorders all the way up to today's dslr's (yeah, even the expensive ones) to top-of-the-line digital movie cameras.
What's more, film grain is tiny, microscopic even. It also has the advantage of being pleasantly organic and random. I can, however, quite easily see something one pixel wide on my monitor even from a few feet back. Film grain is uneven and scattershot, but pixels are arranged into a very tidy and neat grid.
Michel Gondry directed a cool video for the Chemical Brothers where a girl kept having these daydreams that would alternate back and forth between reality and fantasy. For each of these leaps, he would switch back and forth between video and film. What's more, he would simulate those old cheesy 80's video effects (like wipe, smear, etc.) on film. Genius. _________________ QED, sort of. |
|
Back to top |
|
[Shizo] member
Member # Joined: 22 Oct 1999 Posts: 3938
|
Posted: Fri May 12, 2006 12:18 am |
|
![](templates/drizz/images/hrline.gif) |
Hmm, what's the song from that music video, Impaler? I wanna see.
By the way, what about those new digital film cameras? Like the one R.Rodriguez used on Once upon a time in Mexico? There is no grain, and resolution is high.. i guess framerate and lighting plays a major role in making picture look "picturesque" ![Smile](images/smiles/icon_smile.gif) |
|
Back to top |
|
Sumaleth Administrator
Member # Joined: 30 Oct 1999 Posts: 2898 Location: Australia
|
Posted: Fri May 12, 2006 4:37 am |
|
![](templates/drizz/images/hrline.gif) |
Impaler wrote: |
Film has a logarithmic response curve, while video has a linear curve. In short, this means that while film and video may have the same dynamic range, video highlights start clipping a couple stops about middle gray. |
Impaler, can you explain that a bit more? Sounds interesting.
There have been some good results achieved using digital video. Collateral made good use of it, and Battlestar Galactica looks vert good. I expect both examples use a lot of post-processing to achieve the look, and it'd be interesting to find out what those processes are.
Neither looks as good as real film though. _________________ Art Links Archive -- Artists and Tutorials |
|
Back to top |
|
insane007 member
Member # Joined: 28 Feb 2003 Posts: 93
|
Posted: Fri May 12, 2006 5:04 am |
|
![](templates/drizz/images/hrline.gif) |
Sumaleth wrote: |
There have been some good results achieved using digital video. Collateral made good use of it, and Battlestar Galactica looks vert good. I expect both examples use a lot of post-processing to achieve the look, and it'd be interesting to find out what those processes are.
Neither looks as good as real film though. |
28 days later is entirely Digital, and one of my favourite films. |
|
Back to top |
|
Affected member
Member # Joined: 22 Oct 1999 Posts: 1854 Location: Helsinki, Finland
|
Posted: Fri May 12, 2006 5:44 am |
|
![](templates/drizz/images/hrline.gif) |
Interlacing makes a huge difference. At school we had a project that used both 16 mm film and PAL HD (25 fps), and before the HD footage was processed to get rid of the fields, it obviously looked like video, and afterwards it blended in very well. I was surprised how significant the difference was, since before the operation I could just see that it looks video-like, but couldn't point out any single thing about it. |
|
Back to top |
|
Lunatique member
Member # Joined: 27 Jan 2001 Posts: 3303 Location: Lincoln, California
|
Posted: Fri May 12, 2006 7:43 am |
|
![](templates/drizz/images/hrline.gif) |
insane007 wrote: |
28 days later is entirely Digital, and one of my favourite films. |
It's a great movie--I liked it a lot too. The digital video look really stood out in the film though. Which unfortunately, isn't a good thing for me. I love the look of film.
I just had this conversation with Elena the other day. She, and just about anyone who's not visually oriented like us, cannot tell the difference between video and film. Often they'd be watching something on TV, or DVD's of old TV shows from the UK or Japanand, and I'd walk by and ask "What're you watching?", and they'd say "Don't know. A movie I guess. We just started watching it." I would tell them that it's a TV program, not a movie, because it's totally obvious the thing is shot on video, with typical TV show lighting. They simply can't tell the difference.
I remember a long time ago--at least 10 years ago, there was a Japanese comedy TV show that spoofed famous movies. They'd copy the lighting, the camera movement, the props..etc exactly the same, and since it's TV, they didn't have the budget for film stock, but damn, they got their spoofs shot on video to look almost exactly like the original films. I'm sure a lot of effort was put into the lighting and post processing, but it really impressed me.
Sometime on TV shows, you'd catch rare occassions where an episode looks totally different from the rest of the series. It happened on the X-files--the espisode about Mulder's past life as a woman during the Civil War. That episode was drastically better visually--totally amazing. I wish I knew what the difference was technically--like a different camera, different DP, or something else.
I'm sure most of you know this already, but just in case you don't, the digital sensors can't do very shallow DOF, and that's another visual giveaway that something was shot on video. Video is also typically a lot sharper because of the vast DOF.
So to sum up, video looks different because of:
Movement (frames)
Dynamic range
DOF
Color
Grain
sharpness
Anything else? |
|
Back to top |
|
balistic member
Member # Joined: 01 Jun 2000 Posts: 2599 Location: Reno, NV, USA
|
Posted: Fri May 12, 2006 8:43 am |
|
![](templates/drizz/images/hrline.gif) |
X Files was really bad about looking like video. The interlaced 60 fps look was just so cheesy. And it seemed like only certain shots would be interlaced. I guess maybe they did it to deliberately make things jarring, but I didn't care for it. _________________ brian.prince|light.comp.paint |
|
Back to top |
|
Affected member
Member # Joined: 22 Oct 1999 Posts: 1854 Location: Helsinki, Finland
|
Posted: Sun May 14, 2006 10:51 am |
|
![](templates/drizz/images/hrline.gif) |
I still maintain that besides lighting, which is only somewhat related to video tech per se, interlacing is the biggest issue. Film is 24 fps, pal video is 25, I don't think the difference there is that big. |
|
Back to top |
|
Impaler member
Member # Joined: 02 Dec 1999 Posts: 1560 Location: Albuquerque.NewMexico.USA
|
Posted: Sun May 14, 2006 8:32 pm |
|
![](templates/drizz/images/hrline.gif) |
Characteristic curves of film
That's a pretty deep read, especially if you're not familiar with film sensitometry (and you won't be, unless you're a professional photo lab technician), so just scroll down to that bottom graphic. You read the negative graphs left to right, darkest to brightest, reversal graphs right to left. The "shoulder" of the log graph is the part that interests us in terms of highlight detail. You see how the slope of the curve gradually lessens with increased brightness on black and white negative film? That's film becoming less sensitive to relative amounts of light (reciprocity effect), thus technically allowing more detail in highlights.
Digital/video sensitivity is linear, which means that pure black starts at the origin of the graph (RGB 0 0 0) and goes straight up to pure white (RGB 255 255 255). This is interesting for two reasons. Digital actually has much better shadow sensitivity than film. Look again at those graphs. See the "toe"? That straight line (film base plus fog) is basically wasted exposure because the chemistry isn't reacting to such low levels of light yet (reciprocity again). Digital starts recording information right from the origin. Unfortunately, this linear curve means that it also records more highlight information than RGB is capable of displaying with its measly 255 levels of brightness, which means that it clips where film does not.
So, there you have it. Film tapers off, digital drives right through the curve into the brick wall.
Quick and easy example: http://www.malapropter.com/cigarette/cigarettes-124.jpg
See how the highlight starts clipping on the cigarettes? Film wouldn't look so garish. It isn't just my cheap camera, either. You could find nearly any digital image and point out clipping. The reason that some digital movies look almost like film is just pure cinematography. The poor cinematographer has to keep his light levels and ratios fairly constrained so that you won't see any clipping. That's also why digital cinema hasn't taken off like you would expect; having to work harder to avoid clipping is an unnecessary step that you wouldn't have to take with film. _________________ QED, sort of. |
|
Back to top |
|
Affected member
Member # Joined: 22 Oct 1999 Posts: 1854 Location: Helsinki, Finland
|
Posted: Sun May 14, 2006 9:17 pm |
|
![](templates/drizz/images/hrline.gif) |
You're talking about 8 bits per channel, I thought high-end digital film cameras shot at better colour depths?
edit: checking up a bit, the viper, for example, uses 10 or 12 bit colour depth (both were claimed on the internet...) |
|
Back to top |
|
Jimmyjimjim member
Member # Joined: 12 Dec 2002 Posts: 459
|
Posted: Sun May 14, 2006 11:34 pm |
|
![](templates/drizz/images/hrline.gif) |
The BIG thing everyone seems to be overlooking that makes a HUGE difference is LENSES. Beit HD or Film, a low-grade lens will kill the look.
balistic wrote: |
X Files was really bad about looking like video. The interlaced 60 fps look was just so cheesy. And it seemed like only certain shots would be interlaced. I guess maybe they did it to deliberately make things jarring, but I didn't care for it. |
Hey Ballistic-
X-Files was done on film, bro (except for the live episode they did). They printed to video from neg, which is almost universally commonplace, as everything is edited on Avids or Final Cut nowadays.
proof-
http://www.imdb.com/title/tt0106179/technical
X-Files suffered from REALLY bad lighting its first and second season. Later seasons looked MUCH more cinematic.
Battlestar Galactica (the only TV show I watch and by far the most "moviesque" sci-fi show ever) is done entirely in HD. Doesn't look it at all, IMHO. |
|
Back to top |
|
balistic member
Member # Joined: 01 Jun 2000 Posts: 2599 Location: Reno, NV, USA
|
Posted: Mon May 15, 2006 5:44 am |
|
![](templates/drizz/images/hrline.gif) |
Jimmyjimjim wrote: |
X-Files was done on film, bro (except for the live episode they did). They printed to video from neg, which is almost universally commonplace, as everything is edited on Avids or Final Cut nowadays.
proof-
http://www.imdb.com/title/tt0106179/technical
|
Granted, I haven't watched it since I was like 14, but man . . . I could swear there were some jarring interlaced sequences in it from time to time. I guess my memory must be faulty. _________________ brian.prince|light.comp.paint |
|
Back to top |
|
Jimmyjimjim member
Member # Joined: 12 Dec 2002 Posts: 459
|
Posted: Mon May 15, 2006 4:28 pm |
|
![](templates/drizz/images/hrline.gif) |
balistic wrote: |
Granted, I haven't watched it since I was like 14, but man . . . I could swear there were some jarring interlaced sequences in it from time to time. I guess my memory must be faulty. |
I could totally see why a person might think that. Everything looked really flat the first couple seasons. Something else to consider- Depending on the signal source (cable, antenna, satellite, etc,) you can have what's called "field inversion", where the signal is slightly scrambled and the receiver reverses the order that the monitor should display the two fields that make up one frame. It's a really common broadcasting glitch.
Truly, in the end whether or not something has that great "film look" depends on the quality of lenses being used.
I saw a bunch of HD footage that was shot with Panasonic's new HVX 200 HD camera at NAB this year. The damn thing is only $6000 and you can shoot 1080/24p and attach panavision lenses. I defy any average viewer to tell the difference from film. From what I gathered, there are tons of new shows that are are being shot with this very camera. $6k is affordable for LOTS of prosumers out there. Add an HD capture card to a Mac and final Cut and you can do some REALLY cool, pro-looking shit.
Someone mentioned 28 Days Later (f-ing awesome movie)- That film was shot with a consumer-grade DV camera. Not even HD. |
|
Back to top |
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
|
Powered by phpBB © 2005 phpBB Group
|