I used to get this effect in the 80's with an Olympus OM-1 by setting exposure to automatic with aperture at F16 with strobe flash. In low light, the shutter wo

I used to get this effect in the 80's with an Olympus OM-1 by setting exposure to automatic with aperture at F16 with strobe flash. In low light, the shutter would open for (say) 1 second, in the middle of which the strobe would flash for a 1000th of a second. The result is relatively crisp subject with a darker ghost. Timer made no difference. For a while, you'd see the effect in commercial photography. I would imagine that someone working near the elephant's foot would be moving very fast.