360 deg shutter angles - whats the go at the moment ?
Posted 23 November 2012 - 07:31 PM
What are the current camera options for HD acquisition where the shutter angle can be set to 360degs ?
Longer verison for those interested:
I have a VFX/coding project on the go here and I have an odd artefact/bug that I cant seem to remove from my output, after some deep hyper-dimensional playing of Angry Birds Star Wars I came to be thinking that it might be the source footage at fault (or more to the point, I was at fault for not realising that it would be an issue). Specifically, the the camera used a 180deg shutter and that what I really needed was complete motion capture across the full frame period, i.e. a 360deg sample.
I'd like to try an A-B comparison and my query the good folk at these forums is:
What are the current camera options for HD acquisition where the shutter angle can be set to 360degs ? Obviously (well, it's obvious to me) it needs to be progressive scan.
Some slightly more fuzzy restrictions and allowances follow:
It'd be great if it could go 4k, but 1080p is fine (but not that consumer gunk that outputs a 1080 frame that actually isn't 1080 res).
It'd be really nice if it could do 200fps+ at 1080p (720 ok yeh, cool too)
Now I start to show my ignorance of HD workflow ... I'm working on the data in it's direct 24-bit state, i.e. 3 channels of 0-255 values, this is in my own data-structure so it's effectively no longer 'video' and containers/codecs/and whatnot no longer apply - the important point I'm trying to make is that whatever it takes me to get those numbers from the camera and into my mac needs to be relatively painless
If not 360 I'm interested in how close I can get also
I'd hire, not buy
Any tips appreciated.
Posted 23 November 2012 - 07:53 PM
Posted 23 November 2012 - 08:13 PM
What cameras are capable of having the frame period and the exposure time being set to the same number?
(framePeriod = frameRate-1)
I would search this out, but I'm stuck on crap internet and about one website is all I can handle ! Maybe it's as simple an answer as: most of them ?
Epic, Phantom, Alexa ? 5D ?
Should pre-empt this also: I am aware of rolling shutter and yes it will be an issue, but with higher frame rates and some frame-blending hoohah I can do in code I can get around that
Edited by Chris Millar, 23 November 2012 - 08:15 PM.