Saturday, 28 March 2015

OM-D sensor shift in action

I previously looked into the effectiveness of the sensor shift image stabilization of the new E-M5 Mark II for video use. Even when using a long lens, it is much more effective than the Power O.I.S. of the Lumix X 35-100mm f/2.8.

Here, I'll be looking into how it actually works. By removing the lens, it is possible to look straight into the sensor, to see how it moves during video recording. To video record the sensor, inside the lens mount, I put the Lumix GH4 with the Samyang 7.5mm f/3.5 fisheye lens pointing straight into the E-M5:


For an even lightning, I put some white paper around the Samyang fisheye lens. The lens was set to the closest focus distance, and f/8 for sufficient depth of focus.



When moving the camera around, one can see how the sensor also moves, to stabilize the video:



In this case, I left the focal length setting at 15mm on the Olympus OM-D E-M5 Mark II. Setting it higher would make the sensor move more. Here is an example with the focal length set to 50mm:



Conclusion


The IBIS (In-body image stabilization) of the Olympus OM-D E-M5 Mark II makes it very useful for handheld video recording. However, it is a shame that it involves cropping the sensor during video, so that you need even wider lenses.



1 comment:

  1. This post demonstrates perhaps best of all your posts your willingness to investigate equipment with only the resources available to any photographer. No fancy lab - just your own resourcefulness. I will never use my older OM-D EM1 again without these images of the EM5 stabilization in action replaying (somewhat reduced!) in my head. Bravo! Standing ovation!

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