Patrick Jennings wrote:BMPC4k VS Canon 600D - ISO, Dynamic Range & Contrast
Just for fun
600D
Format: 1080p25 h.246
Lens: 35mm Nikon at f/2.0
ISO: 200
Shutter: 1/50th
Picture Profile: Vision Tech (Very Very close to Neutral Dialled Down - Just a bit warmer in the pinks)
BMPC4K
Format: 4k Prores 25p (scaled down to 1080p in premier)
Lens: 35mm Nikon at f/2.0
ISO: 400
Shutter: 180 Degrees (1/50th)
Dynamic Range: FILM
Note: I have boosted the saturation and pulled a
tiny amount of green out in post to match.
No adjustment to contrast or exposure what so ever.Analysis: Almost identical. Look at the highlight on the lamp. They're both JUST blowing out... Look at the shadow under the TV and under the old man. They're both sitting at about the same level with the BM having slightly more detail. Exposure mid point is about the same.
Personal Conclusion: This is pretty consistent with what I've been seeing with my daylight tests. The BMPC4k Has about the same highlight range as a 600D. It's ISO/Mid range exposure is about 1 stop under. It does have more shadow range, but when you push it you start to see the vertical fixed pattern noise... Lowlight and Dynamic range on this camera are a bit less than I'd hoped for...
Thanks for sharing an interesting comparison between a decent stills camera with an "HD" video feature, and the BMPC-4K (a 4K UHD video camera that doesn't have a stills feature
per se).
Obviously, if all one wants to do is take uncorrected video straight out of the cameras and post it directly to the web, then the results in many cases will be similar, as your example shows.
But that would be largely a waste of the BMPC-4K many additional capabilities as a video camera. Including its 4K UHD or 1080p recording formats, global shutter, much higher real resolution & detail, extremely low aliasing/moire, balanced audio inputs, 6G-SDI output, LANC, and so forth. And the very real benefits of working with 10-bit 4:2:2 ProRes HQ in post for such things as color-correction/grading, effects, chromakeying, scaling/cropping, and so forth. Plus, the BMPC-4K includes the full version of Resolve & UltraScope. And BMPC-4K compressed 12-bit RAW is due "soon" as a free firmware update. Some very nice BMPC-4K video samples are here:
http://herefortheweather.wordpress.com/ ... -red-epic/In fairness to the 600D (T3i), since it's a DSLR, I would imagine it's a superior time lapse camera, correct?
The reason I put the 600D's "HD" video feature in quotes is because it's well known that almost all DSLRs resolve less than 1080p real resolution in their video recordings. Their "HD" is in a 1080p video data stream, but typically resolves closer to about 720p (and sometimes less). Much of the apparent "detail" in DSLR video footage is actually aliasing (false detail). I have no doubt that BMPC-4K UHD video recordings can easily be rendered to full 1080p resolution with little or no aliasing, and its in-camera 1080p footage likely contains far more real resolution and detail than most if not all DSLRs.
Obviously a DSLR makes for a superior stills camera experience, and in most cases, superior stills results, too.
One can also think of the BMPC-4K as an 8MP "stills" camera with an
infinite burst mode, although with a very limited range of shutter speeds and no AF, etc.
Cheers.