12-18-2017 10:51 AM
I'll put here one of my response regarding the stabilization jumping image......maybe explains, at a very intuitive level, what happens....
my view of EIS stabilization is:
a crop is made from the entire surface of the sensor, in the centre.
as long as the movement of the camera can be compensated by the movement of the cropped area inside the entire area, stabilization works.
when the movement is too steep, with a larger amplitude, if the cropped has to "move" more than the entire area, it is not possible to compensate the movement, so the image "jumps".
if we want less "jumps", we have to accept more crop, to give the camera the chance to compensate.
EIS works fantastic till the cropped area, between frames, remain in the entire area.
this leads to another known behaviour:
- in low light, when the shutter speed is 1/25 1/30 ...meaning 1/fps, the chance the crop area to exceed the entire area is way greater...because has more time to do it....and the stabilized image looks jelly.
I keep saying, in life and in technology everything has a price...
12-18-2017 01:03 PM
i'm basically walking around holding the camera, not on a bike, not running or anything and it will jump. my phone does a much better job, something else is going on where they could say if it goes beyond the frame to do something else rather than the whole thing just jump.
12-18-2017 06:17 PM
Thanks for the technical insight robert1326, will definitely consider these when shooting. I'll probably do a few tests to see the difference and adjust accordingly. Maybe panning should be done more delicately with a shorter grip as compared to a gopole?
12-19-2017 04:18 AM
When it comes to EIS, if you use a slight zoom (when available) it helps reduce the jumpy motions. It also helps to have good lighting and a clearly defined horizon.
12-19-2017 05:07 AM
what helps EIS?
- very good point @danielr15 said a little zoon
- good light - means the shutter speed is lower, freezes the frames better, the movement between frames is less, less chance to be out of the 10% zone
- smooth movement when panning yes, you are right!... just to give the camera the chance to follow the movement
when shaking and the camera remains in the comfort EIS zone, does not matter, is perfect:
just to realise the trail, see the handlebar movements
all those shaky were removed by the EIS, even in lower light conditions than with karma....but the "jumps" of the trees appear some times....due to the zone....
12-19-2017 05:57 AM
the videos above are shot in 2k it looks like, 4k seems to have alot more jumping.
this video below (4k/30) is just walking holding the camera fairly steady in hand on a paved sidewalk. it really shouldn't be noticeable, but when i first start walking toward the trees you can see it jump appearing to relevel itself.