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Welcome to Michael's blog. Michael Andrew, (aka Michael The Maven) is a freelance producer, photography instructor, tech innovator, and when needed, disaster aid specialist. Disclaimer: Michael is a participant in Bhphoto & Amazon affiliate programs that provides an advertising commission if you purchase through links on this website.


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05.27.17         photography  

GH5 vs OMD EM1ii IBIS Tests Part 2


Here is my follow up video on the GH5 vs OMD EM1ii IBIS Tests. Many of you had several helpful suggestions, and I decided to revisit this test with the Olympus 12-100 f4 IS lens, and also ask the question if Olympus IS lenses the Gh4 or GH5 make sense.

Let me know what you think or if you have any suggestions on the upcoming Epic Shootout between these two cameras, let me know! Enjoy!



I recently posted a video comparing the GH5 and the EM1 Mark 2 and swapping Panasonic lenses back and forth between the both of them. Many of you had very helpful suggestions including turning off e-stabilization, which clearly degraded the footage. Some others suggested that I try Olympus 12-100 image stabilized lens on both of them and so I did just that.

The first test I repeated was the slow shutter speed test.

1/5 second, handheld
35mm focal length
3.5 feet from color chart
Take 33-35 images
Count % of keepers
Swap lenses & repeat
Leave IBIS controls on, only manipulate IS switch on lens

12-100 Slow Shutter Speed test Results Part 1

GH5 & Olympus 12-100 - IS OFF- 0%
GH5 & Olympus 12-100 - IS ON - 44.1%
EM1II 12-100 - IS ON - 54.1%
EM1II 12-100 - IS OFF - 0%
EM1II 12-40 - NO IS - 54.5%


This was really fascinating for me. When we look at the GH5 with this Olympus lens turned off 0% keepers. As soon as we turn it on - 44%.

So the Panasonic definitely benefits from the image stabilization in the lens. When you flip that switch something happens. Then when we look at the EM1 Mark II. When the lens is turned on 54%. When the lens is turned off 0%. And I thought this was really interesting because when we did the test with the 12-40, which is not an image stabilized lens, we had 54% keepers. So the questions is how much of this percentage is coming from the IBIS and how much is coming from the lens. And so I dug a little deeper.

Watch the funkiness that’s about to happen on the back of the EM1 Mark II. If I have the 12-100 on and I come in here and it’s turned on, I have these options here, and when I flip the switch off it kicks me out of the menu. Come back in, can’t turn them on again. Turn it on, kicks me out of the menu, come back, and if I try to turn off the sensor by itself, look - can’t do it! It won’t let me highlight the ability to turn that off. Right? So watch what happens when I change lenses. OK. So I put a new lens on there, right? This is a 12-40. Watch what happens. If I come in here now, I can turn off image stabilization. No problem! Right? It’s because it’s a non-image stabilized lens.

One more thing that I need to point out. If you come into the menu under customization C-2 Lens I.S. Priority you can turn this off. Come back out, check that our stabilizer is still on, flip the switch, check it again, now it’s off. So it appears that the lens switch is an all or nothing. If you turn it off it appears to be turning all of the image stabilization of the camera off. This is probably a convenience thing. If you put it on a tripod or whatnot. If I turn it back on, there it’s on, and I repeat the slow shutter speed tests - 55%. So draw your own conclusions from that. It appears that there are a lot more tests that need to be done with the 12-100 but in terms of image stabilization. At my focal length, at my distances, it’s very hard for me to determine how much stabilization is coming from the lens and how much is coming from the sensor.

And just to verify everything else; I put the Olympus lens and the GH4, which does not have IBIS, and lo and behold, 3% keepers when that lens is turned off. I got lucky on one shot. As soon as you turn it on - 48.5%. So as far as stills go, yes definitely! Olympus stabilized lenses play nice on Panasonic’s. At least in the case of the GH4 and GH5.

12-100 Slow Shutter Speed Test Results Part 2

EM1II & Olympus 12-100 - IS OFF 0%
EM1II & Olympus 12-100 - IS ON - 54.1%
EM1II & Olympus 12-100 IS ON, C2 OFF - 55.5%
GH4 & Olmypus 12-100 - IS OFF - 3%
GH4 & Olympus 12-100 - IS ON - 48.5%


Let’s take a look at some of the video stuff (Out on the beach):

Good Morning Everybody! We’re going to do a retest on the stabilization. I got the 12-100 Olympus stabilized lens on the EM1 Mark 2 and I have the 12-35 V2 on the GH5. Dual stabilization on both cameras. I’m going to start walking….Let's do a shake test on the shadow. Now I’m going to turn off the Olympus. Keep the GH5’s 12-35 on. Lets do a shake test right here (on the rocks and shadows). I’ll stand still. 12-100 is on, 12-35 is off. Lets do a shake test…

Lens Swap

I have the 12-100 on the GH5 and the 12-35 on the Olympus. Holding….Here comes the walk. Shake test. Coming back the other way we’re going to turn off the 12-100 which is on the GH5. Here’s the hold. Here’s the walk. Let’s take a look at the shake. Now we’re going to invert it. Panasonic 12-35 is off. 12-100 is back on. Here’s the hold. Here we go…..Let's do a little shake test.

In conclusion: Looking at the data both from the first test and the second test, stills and video, the conclusions that I’m coming to is that yes it does make sense to put Olympus stabilized lenses on Panasonic bodies. There appears to be something there that is helping the Panasonic. Putting Panasonic image stabilized lenses on Olympus bodies, it doesn’t seem to improve performance. I think the e-stabilization on the Olympus is world-class. It’s amazing. The problem with it is it degrades footage. There may be some applications where you have to choose between quality and stabilization. I’ll leave that choice up to you.

In any event thank you for your suggestions. Keep them coming. I’m listening. Epic Shootout coming between the GH5 and the EM1 II coming soon!

If you own any of these cameras and you’re looking to use them definitely check out my crash course videos on both of them. Thank you guys for watching and I’ll see you next time.

Michaels GH4 Tutorial Course

Michael's GH5 Crash Course

Michael's Olympus OMD EM1ii Crash Course

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