New answers tagged slowmotion
The reason we try to shoot at our target frame rate is because if we need to adjust the frame rate, the computer has to invent new frames to go in between our existing frames. This can result in artifacts in the image and generally reduces the quality. You are correct that 24fps is the standard for theater and also correct that you need to shoot a faster ...
You only need to overcrank the scenes you want to slow down in post. Editing and effects software make it easy to decimate from 60 (or higher) to 24 fps. You'll get better flexibility if you shoot your slomo scenes at a the highest exact multiple of the base rate that still gives acceptable exposure etc. So 96, 120 or 240 fps would be preferable if they work ...
The base limitation comes out to 30fps. MagicLantern (for Canon) and the Lumix GH2 hacks are two of the most advanced hacks out there right now, and neither of them has been able to get faster sampling reliably working beyond what is normally possible. It really comes down to a basic hardware limitation in terms of how fast data can be moved and how fast ...
I think you're out of luck. Official specs say 30fps max, and I can't find any documentation of a possible hack. http://www.nikonusa.com/en/Nikon-Products/Product/Digital-SLR-Cameras/25478/D5100.html The most widely distributed slow-mo camera is probably the iPhone 5s-- I bet you could borrow one to play around with.
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