Max Leung
Senior HTF Member
- Joined
- Sep 6, 2000
- Messages
- 4,611
Vincent wrote:
My understanding is that the IMAX cameras are HUGE. You need at LEAST two people to operate it. More if you want to move the damn thing. Although, they may have gotten smaller (but not by much). You pretty much need a three man submersible (one for the camera, one for the pilot, another for the camera operator).
I had the fortune to watch the IMAX film Antarctica last year with the director in attendance and told us about the camera: Back in 1990, IMAX cameras could not film any more than 5 minutes of footage. The cameras are also extremely noisy - dubbing and foley work cannot be avoided. They are bulky and heavy, and need constant maintenance.
I haven't seen TITANICA (it is IMAX right?), but imagine the costs of filming underwater for a few minutes, then having to resurface and replace the film, after waiting for hours in a decompression chamber. And the heat generated by the thing must be unbearable - as well as tolerating the noise in such a small space (although for only a few minutes, so I guess it isn't that bad).
I suspect you'll have to do as Lucas suggests...watch the (Cameron) film. Try to imagine how difficult it would be with a bulky IMAX camera, and how limited your options are. You also have more options with a digital camera - the sensor can be programmed to be more or sensitive to light in any given situation, whereas you have to be very careful with film (although film can give you a lot of leeway in post-processing for under or overexposure - digital cannot handle overexposure at all). Color balancing can also be done on the fly, unlike film, where each film stock is rated for a certain color temperature. If you watch camera crews around reporters, you'll see them calibrate their cameras' color balance on the fly using something like an Expo disc - taking a shot under the light with a special diffuser lens.
Admittedly, color balance shouldn't be an issue deep underwater - you have to supply your own light source anyways, so you can easily pick the right film without any worries.
My understanding is that the IMAX cameras are HUGE. You need at LEAST two people to operate it. More if you want to move the damn thing. Although, they may have gotten smaller (but not by much). You pretty much need a three man submersible (one for the camera, one for the pilot, another for the camera operator).
I had the fortune to watch the IMAX film Antarctica last year with the director in attendance and told us about the camera: Back in 1990, IMAX cameras could not film any more than 5 minutes of footage. The cameras are also extremely noisy - dubbing and foley work cannot be avoided. They are bulky and heavy, and need constant maintenance.
I haven't seen TITANICA (it is IMAX right?), but imagine the costs of filming underwater for a few minutes, then having to resurface and replace the film, after waiting for hours in a decompression chamber. And the heat generated by the thing must be unbearable - as well as tolerating the noise in such a small space (although for only a few minutes, so I guess it isn't that bad).
I suspect you'll have to do as Lucas suggests...watch the (Cameron) film. Try to imagine how difficult it would be with a bulky IMAX camera, and how limited your options are. You also have more options with a digital camera - the sensor can be programmed to be more or sensitive to light in any given situation, whereas you have to be very careful with film (although film can give you a lot of leeway in post-processing for under or overexposure - digital cannot handle overexposure at all). Color balancing can also be done on the fly, unlike film, where each film stock is rated for a certain color temperature. If you watch camera crews around reporters, you'll see them calibrate their cameras' color balance on the fly using something like an Expo disc - taking a shot under the light with a special diffuser lens.
Admittedly, color balance shouldn't be an issue deep underwater - you have to supply your own light source anyways, so you can easily pick the right film without any worries.