DPReview.com is closing April 10th - Find out more

GH4 and 14-140 stabilization issue

Started Jun 22, 2014 | Discussions thread
LingoDingo Senior Member • Posts: 1,769
Re: GH4 and 14-140 stabilization issue

Vesku wrote:

LingoDingo wrote:

What frame rate and shutter speeds are you using when you shoot ?

I use 1080/60P 100mbs. I tested today all shutter speeds from 1/60 to 1/1000 and apertures 3.5 to 22. There is no meaningful difference when using all the exposure combinations. Very slow shutter speeds obviously smooths image vibration a bit.

For frame rates up to 30fps, "180 degree" shutter is the rule of thumb for film-making, which translates to 1/(2 * Fps). So for 24fps, it's 1/48th second shutter.

With the GH4 you can set the camera to use xx degree shutter settings as opposed to traditional photography shutter speeds.

For frame rates over 30fps, the standard shutter formula becomes 1/Fps, so it's 1/60th second for 60fps.

With my GH3 I use 1/40th second shutter for 24fps, because the slower shutter creates a little more motion-blur which helps to smooth out motion jitter.

I find non-electronic lenses are better when it comes to eliminating jitter, which I think is mainly due to the softer image they produce, so the jitter is not as obvious. In post I do not sharpen footage shot with Lumix lenses ( and I set my GHx cameras to as little sharpening as possible when shooting ), while with non-electronic lenses ( mainly Nikon AI-S glass ) I add a fair bit of sharpening in post.

I am a little worried because I just paid 2000 euros (about 2600 dollars) for a kit which shoots unwatchable vibrating videos.

Try other lenses ( especially non-electronic lenses ), as things can look very different with another lens.

 LingoDingo's gear list:LingoDingo's gear list
Panasonic Lumix DMC-GX85 Panasonic GH5 Panasonic S1 Samyang 7.5mm F3.5 Fisheye Olympus M.Zuiko Digital ED 60mm F2.8 Macro +24 more
Post (hide subjects) Posted by
osv
osv
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow