varicam undercrank/overcrank
I'm starting to get ready to purchase one; i still don't understand this feature for under/over cranking though. I understand that higher fps = ability to slow down stuff smoothly and vice versa but is there any examples of how good this effect can be done via the varicams?
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It's the same principle as shooting off frame rate on a film camera- you record more or less frames per second and then play them back at a standard 24 frames per second. The result is clear, sped up or slowed motion.
Most cameras simply capture everything at a fixed frame rate- 24 fps or 60 interlaced fields per second. In order to change the apparent speed of motion you have to speed a clip up or slow it down in post. Since you're either adding or removing frames than never optically existed, the results are much less smooth and much less believable looking. I'd suggest a VariCam demo- it's pretty obvious when you see the difference. Other cameras that can do this include the Panasonic HVX200 and HPX170 and the Sony EX1 and EX3. Noa |
thanks Noah, i tried looking for some demos but coudln't find any. Any links or demos appreciated!!
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Dan |
Watch any episode of "Planet Earth" for plenty of slomo from Varicam. Nice Varicam feature also is ability to do ramping, ie starting shot at one speed and dialling it up to a different speed, so start normal motion and then slow as the shot goes through. Pn is a very nice feature as you can then view the shot at slowed down speed straight from the camera, but fortunately even with the tape cams it's no longer neccessary to buy the insanely expensive frme rate converter, as software can do it now.
Steve |
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Noah |
is the hpx500 also capable of this feature? in it's 720p mode?
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Pretty sure it can, but bare in mind that the 500 is a very different camera to the Varicam in terms of picutre quality.
Steve |
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