I'm currently changing my EOS 7D for a Sony a6400 and since this camera does not have IBIS, I'm also getting a 3 axis Gimbal (ZHUIYN WEEBILL LAB). I'm planning to use this camera for video and photo reporting of events, protests and to do interviews.

A lot of my reporting will be walking in crowds and I was wondering which lenses to buy. I'm planning to get the 18-50mm OSS kit lens from Sony and use a converter for my Canon 50mm F1.8 and Canon IS 16-35 F4 L.

But I do not know if IS works with a converter for this last lens, plus most video autofocus features apparently do not work with Canon lenses so is IS/OSS really needed to get smooth footage if the camera is already on a Gimbal?

So that I could maybe get some cheap fast wide angle lenses without IS/OSS but without also having shaky footage.

  • The gimbal is to avoid low-frequency camera moves (the kind that make you sea-sick). The IS is used to make still shots sharp. Personally for this kind of use having a working AF is more important than having a super-sharp image, it is even a prerequisite, so I don't see much point in keeping the Canon lenses. – xenoid Sep 26 '19 at 14:59
  • @xenoid I thought about it too, for video I guess having a gimbal to smooth big moves and filming wider and in 4K should do the trick if I'm smoothing the footage with premiere Pro later on. I probably will only use the Canon 50mm for photo and the Canon 16-35 would be eventually just replaced by the 18-50mm Sony lens which I'll use for most of the video I need. I'll get a wider faster lens like the Sigma 16mm 1.4 for pretty much all of my low light needs – R3D34THR4Y Sep 26 '19 at 22:33

Using common-sense:

Image stabilization system, let's say inside a lens, compensates movements of a fraction of a second, let's say, from the range of human shaky hands, 1/15 to sharp images, let's say 1/400. This is because the gear involved is low mass, a lens element or a sensor.

A gimbal needs to stabilize a mass of let's say 1 kilo or a couple of pounds. Of course, you can not move fast enough a mass potentially dozens of times more... massive.

So the "frequency" they work in is on different levels.

Sayed that: Define your priorities. Photo vs video. Aperture vs focus, low light normal light, shutter speed vs motion blur, 1080 vs 4k, frame rate... etc.

For the lens, instead of using a converter, buy a native 50 1.8 lens for the Sony.

For angry crowds... get a small sports camera :o)

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  • For crowd environments I think I'll keep using my action cam for video and my 7D for photos (it's so durable it could be used as a defensive weapon haha) For video I guess just using the kit 18-50 with OSS would be fine for pretty much everywhere and getting a wide angle and fast lens, possibly without OSS could be fine for Low light as I don't film that much at night and Premiere pro stabilization would do the trick on wide 4k footage. For photo I guess I'll get either a 50mm or a 35mm F somewhere between 1 and 2 and most likely without OSS as it isn't as important for photo – R3D34THR4Y Sep 26 '19 at 22:25
  • The Canon 1-Series are the Canon cameras reputed to be capable of being used as a club to beat someone to death and then still being usable to take a photo of the corpse. – Michael C Sep 27 '19 at 1:03
  • Haha well I once took a hit to the head from a 7D with a 400mm telephoto lens and let me tell you, something was damaged that day and it wasn't the camera – R3D34THR4Y Sep 27 '19 at 1:36

Some image stabilized lenses come with explicit instructions to switch off image stabilization for use on a tripod because the compensation is designed to work under hand-held conditions and a fixed mount may lead to oscillatory behavior.

When having a separately stabilized mount, particularly if it is actively stabilized rather than through gyros, the interference of two stabilization systems may cause additional tendencies for oscillation. So at least for lenses recommending to switch off stabilization on a tripod, my gut feeling would be to do the same on a gimbal.

Of course the best procedure will be to test each particular combination extensively before making a decision.

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  • I'll definitely try that once I get the equipment, but I guess you might be able to shed some light about something concerning that: If for video I shoot a bit wider using a Gimbal and in 4k and get focus right thanks to Sony's marvelous autofocus, do you think I would get a better result by using a stabilized lens or just using digital stabilization on Premiere Pro and downgrading the resolution a bit? – R3D34THR4Y Sep 26 '19 at 22:16

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