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Shaky 5D MK III footage on 50mm (1.4)

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Bernhard Walzl
Shaky 5D MK III footage on 50mm (1.4)
on Nov 12, 2015 at 11:53:27 pm

hi there,

I was wondering about the settings of the 5D MK III when shooting handheld. I used the Canon 50mm lens (aperture 1.4).

shaky footage



not sure if the video is long enough to really judge it but when you look closely on the leaves in the back you can see some sort of vibration. I am not talking about the standard shake you get when shooting handheld.

or look at this one, shot on the same lens, even using (some sort of) a steadycam :

shaky steadycam



It looks like there is some in-camera stabilisation and the camera tries to stabilise a still while panning then rapidly moving forward.
The lens doesn't have Image Stabilisation so I guess this is the factor to blame but is there any option available in camera to reduce this sort of vibration? or is it simply not recommended to shoot on such a lens handheld?

thanks for your comments,
bernhard


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Aaron Star
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 1:19:16 am

Are you shooting RAW video or AVCHD?

The clip with the tree issues is not long enough to see beyond the camera shake for me. If the leaves are going soft in the background, could be the bit rate to capture that detail is to high for the codec your are recording/processing to. Shooting handheld raises the bar on codec bandwidth requirements, due to the amount of picture change. Same goes for the Steadicam shot, large picture change challenges the low processing power in DSRL cameras. Best to record individual frames, then try and determine if your moves are to fast for your frame rate.


The Steadicam shot looks a little like a combo of rolling shutter and LGOP compression artifact with MP4. I would see if you get the same issue shooting in an intra frame codec like RAW video. Could also be something with your workflow to vimeo, its hard to say really.

http://www.magiclantern.fm


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Warren Eig
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 5:45:20 pm

What is your framer rate camera settings? It looks like 24fps judder. You get the same thing hand held with 35mm film cameras. You need image stabilization like a steadicam or dolly, our just more handheld practice.

Warren Eig
O 310-470-0905


email: warren@babyboompictures.com
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Bernhard Walzl
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 5:54:34 pm

thanks for your replies.
i recorded H264 and it was set on NTSC.

is there no in-camera stabilisation which was maybe switched on? you guys are shooting on a 50mm lens without IS handheld at all?


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Warren Eig
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 5:59:46 pm

Bernhard,

Are you shooting 23.976fps? You should set the camera to 1/50 to emulate a 180 degree shutter and shoot at 23.976fps if you want the film look of 35mm. Leave the camera at 1/50 and adjust the aperture for proper exposure.

The 50mm lens has no stabilization nor does the camera have a setting for that.

Warren Eig
O 310-470-0905


email: warren@babyboompictures.com
website: http://www.BabyBoomPictures.com


REEL: http://www.babyboompictures.com/BabyBoomPictures/Reels.html


For Camera Accessories - Monitors and Batteries
website: http://www.EigRig.com



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Bernhard Walzl
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 6:04:59 pm

no it was shot on a frame rate of 29,97


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Todd Terry
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 6:01:13 pm

Well, you are obviously not talking about the inherent shakiness of handheld work, so we are not looking for that or 24fps judder or anything.

The bottom line is that your clips are too short and/or too highly compressed on the COW's video player to really tell what problems there are, if any. I personally can't see anything that you are talking about.

If possible, you might have better results showing us what the issue is if rather than a video upload you can do an actual FILE upload instead (it's the far right of the icons above the box where you compose a message, just to the right of the Video Upload icon). If you can upload a file that is the raw ORIGINAL CAMERA FILE before any compression or any other voodoo has been done to it, we might be able to tell what is happening there.

T2

__________________________________
Todd Terry
Creative Director
Fantastic Plastic Entertainment, Inc.
fantasticplastic.com



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Bernhard Walzl
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 6:25:12 pm
Last Edited By Bernhard Walzl on Nov 13, 2015 at 6:29:20 pm

The original file has 600 mb you can download it from here :
https://www.wetransfer.com/downloads/53a94add612d265f73b5962605e7645a201511...

thanks for your help,
bernhard


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Todd Terry
Re: Shaky 5D MK III footage on 50mm (1.4)
on Nov 13, 2015 at 6:44:43 pm

I was curious enough to download it... (and can confirm from the earlier question that it is indeed a 29.97 file, progressive)....

I put it on a 29.97 timeline, watched it on a 1080 monitor, and sorry to say I can't see any sign of the "vibration" you were talking about, in any background leaves or anywhere else. It doesn't seem to have any compression issues or artifacting of any other kind that I could see.

Yes, of course it is extremely shaky footage, but that's normal and to be expected of an unstabilized walking handheld shot... but I know that is not what you are talking about.

Although there is no metadata to tell me what the shutter speed was, it does look like the shutter speed might have been slighter higher than optimal (for this frame rate a "normal" shutter speed would be 1/60th of a second), and the higher shutter speed might be adding to a little bit of a staccato look that you are getting... although there is still some substantial motion blur in the images so it's not too much of a "narrow shutter" look... a little but not much. And that's not what you are asking about, anyway.

Bottom line, I just cannot see or find this "vibration" issue that you are seeing. Maybe someone else will have better luck.

T2

__________________________________
Todd Terry
Creative Director
Fantastic Plastic Entertainment, Inc.
fantasticplastic.com



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