Pro Capture for lightning with the OM-D E-M1X camera?
Yes, please!
We just had a small lightning storm pass overhead here in Montana and while it was on it’s way I ran outside to see if Pro Capture would work for getting shots of lightning.
And it does!
For those not familiar with Pro Capture on Olympus, what it does is keep a pre-set number of frames in a buffer which constantly gets overwritten with the newest images while slightly depressing the shutter button, so that when the action does happen you fully press down on the shutter to save those frames it had in the buffer.
With lightning, normally by the time you see it, it is gone and almost impossible to photograph from sight alone. But with Pro Capture, this is a definite alternative to using a lightning trigger. In fact this is even better than some other tricks I have like using a long exposure or using a time-lapse mode to try to photograph lightning.
I set up Pro Capture to 20fps Max, with Pre-shutter Frames set to 14, and Frame Count Limiter at 25. I’m still experimenting with Pro Capture so take those settings with a grain of salt 
I was at ISO 400, f8 at 1/400s with the M.Zuiko 12-40 f2.8 Pro Lens and shot hand-held.
While this was just a backyard test, I can’t wait to get out into a real lightning storm in a scenic area with this camera!!