D7000 video footage from Photokina

noelsphoto said:
This camera is so tempting as well as the other cameras as of now. But I'm still holding off for the future d700 full frame with video. I wonder how long I have to wait.
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I hear ya! My 7D will do me fine. If I wasn't getting an AF-100 at the top of the year I would definitely be considering the a full censor DSLR. And based on the 0 aliacing and moiring from the D7000 the D700 should prove to be a pretty nice camera. It appears that they might have improved on rolling shutter as well.
 
Crude Rolling Shutter Analysis

Crude Rolling Shutter Analysis

I looked at that whip pan from Photokina and did some pixel counting. It was very hard to find any skew at all in the blur (would be great to get a pan with a narrow shutter).

It's a large range, but I think the shutter scan speed (bottom to top of image) is somewhere between 1/48 sec and 1/240 second. And I am leaning toward the faster times after looking at this and Chase Jarvis's whip pans.

I'm guessing about 1/100 second for shutter scan, which would make the rolling shutter better than any other DSLR or prosumer CMOS video camera.

Of course I have to do some slightly more scientific tests before making any conclusions - these are just guesses. If anyone spots any new footage with fast pans, please let me know. Otherwise I'll wait for my camera to arrive and do some good tests. I hope I have one of the first bodies from Amazon.
 
Lee Wilson said:
They are the same thing, 'jello' is a rolling shutter artefact.

Footage looks great to me, really nice.
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They are generally the same thing. Jello is extremely bad rolling shutter, but "jello" is not a technical term, and you can use it as you like.

If you pause the photokina sample video at the whip pan, you'll see a lean, but it is hardly noticeable in real terms. Even the D90 was useable, so this is a none issue, just an observation.

Sometimes the D90 jello was fun. Slapping on a lensbaby and making dreamy motion images.

Another thing I liked and hated about the D90 was the mud. In one way it was annoyingly SD, but at the same time it seemed to roll the highlights nicely in its murky mix. Seems to me the T2i and others have harsher highlights, more video-esque.

ANyways, looking forward to the D7000.
 
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James0b57 said:
They are generally the same thing. Jello is extremely bad rolling shutter, but "jello" is not a technical term, and you can use it as you like.
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of course, but the only way to improve jello without improving the rolling shutter is to optically stabilize the image, which isn't really something the sensor can do. if you see a lot of skew but no jello it's simply because the camera isn't shaking very much.
 
mattsand said:
of course, but the only way to improve jello without improving the rolling shutter is to optically stabilize the image, which isn't really something the sensor can do. if you see a lot of skew but no jello it's simply because the camera isn't shaking very much.
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So are you skeptical that the D7000 will have less jello than the Canons?
 
I wonder what this camera will look like with CapRock. Any aliasing and moiring that might be letf over should be completely wiped out.
 
Lee Wilson said:
It only needs to have a faster 'read' time to achieve this.
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Exactly. And everything I've seen so far from the D7000 indicates that it does have a faster read time than other cameras. We'll see if this is really true when we get our hands on them.
 
goodgoings said:
So are you skeptical that the D7000 will have less jello than the Canons?
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i've no idea, but it looks like the shutter is faster than the d90. it's very easy to measure if you get hold of a camera. just aim it at something vertical and pan, then count the pixels. the amount of jello is directly proportional to that measurement.
 
The sensor performance will improve, the RS problems will be eventually gone and the moire and aliasing will be history. The camera manufacturers are in business to make money and they know that they will make money as they improve performance. It is amazing but in the electronics business everything goes thru a great period of improvements. The minds behind these products are amazing. (Although I still believe the hands of more advanced space aliens are involved there too. LOL)
 
mattsand said:
i've no idea, but it looks like the shutter is faster than the d90. it's very easy to measure if you get hold of a camera. just aim it at something vertical and pan, then count the pixels. the amount of jello is directly proportional to that measurement.
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You'd need to know the speed you were panning at for the measurement to have any meaning.
 
as long as it handles rollign shutter well, does it matter if its better or not than other dslrs?
d7000 is usable, period.
if the codec is equally better. even better
 
Lee Wilson said:
You'd need to know the speed you were panning at for the measurement to have any meaning.
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Right - to do the test you need to pan at a fairly constant speed and analyze two or three consecutive frames. Then you can see your pan speed in "pixels per frame" (or pixels per second) versus you skew in pixels and determine the time it takes to scan the image from top to bottom (or bottom to top).
 
Lee Wilson said:
You'd need to know the speed you were panning at for the measurement to have any meaning.
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i'm not sure what you mean. of course you need to know the speed but that can also be measured from the same vertical line. you measure how far the line has moved between two frames, and how much it's skewed, divide, done. the frame rate then gives you the readout time in seconds if a percentage isn't enough.

EDIT: too late.
 
I preordered on the 15th. It does look promising.

The overlays on the display look pretty unobtrusive . The picture area does not seem to fill the whole 720p frame, leaving a letter box and pillar boxes where most of the info goes.
 
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