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View Full Version : Anyone notice Mega O.I.S. "bump": video



mikeydvx
06-21-2009, 07:13 AM
Take a look at this video:

http://vimeo.com/5257811

At 3 seconds you'll see a little "bump" that looks like someone flicked the image stabilization mechanism. I'm sure it's just the fact that I was hand holding a 140mm shot and my hands may have made a slight but quick movement that the IS couldn't handle BUT I was wondering if anyone else has notice the same thing?

Mike

wowubbzy
06-21-2009, 07:51 AM
Take a look at this video:

http://vimeo.com/5257811

At 3 seconds you'll see a little "bump" that looks like someone flicked the image stabilization mechanism. I'm sure it's just the fact that I was hand holding a 140mm shot and my hands may have made a slight but quick movement that the IS couldn't handle BUT I was wondering if anyone else has notice the same thing?

Mike

Yeah I think you probably made a subtle but sudden movement and the IS overshoots and max'ed out its range of compensation.

I've owned countless IS lenses from Canon and Nikon. On the longer lenses that bump is reproducible - be really steady and then give it a tiny but suddent jerk.

I did own 2 lenses (canon 24-105L IS and a Nikon 18-200VR) that had a bad IS mechanism. The Canon bumped like your sample non-stop; the Nikon gave a few bumps and the VR stopped entirely.

DonalDuc
06-22-2009, 07:54 AM
It makes no sense to discuss about converted videos. Show ORIGINAL !
98.5% of all users are "convert specialists" :lipsrseal :cry:

mikeydvx
06-22-2009, 07:56 AM
It makes no sense to discuss about converted videos. Show ORIGINAL !
98.5% of all users are "convert specialists" :lipsrseal :cry:

That's not applicable at all to this video. Obviously the same bump shows up in both the original MTS and the MPG or I wouldn't have posted this. Vimeo won't allow MTS files which is the only reason for the conversion. The video was just to demonstrate the bump (which even looks the same when you view it on the camera BTW).

Mike

Isaac_Brody
06-22-2009, 10:27 AM
Yeah, that's pretty easy to notice. Operator error? If your handheld's got the shakes it's probably better to throw your cam on sticks or turn off the OIS to avoid that jerk. Of course you turn it off and it's shaky handheld. Or you can practice shooting handheld to avoid that. :)

bewillia
06-22-2009, 11:28 AM
that's an interesting bump. i could imagine an opportunity presenting itself one day to use that kind of artifact creatively.

do you remember seeing that on the display while you were shooting?

mikeydvx
06-22-2009, 11:33 AM
that's an interesting bump. i could imagine an opportunity presenting itself one day to use that kind of artifact creatively.

do you remember seeing that on the display while you were shooting?

Yes. I noticed it in the viewfinder while I was shooting.

Mike