AFS-S issue - Returning my XT5

Yannis1976 wrote:

Clive99 wrote:

Yannis1976 wrote:

Cream17 wrote:

[ ... ]

4) Used with a combination of EF and MS (I believe EF+M+E) - It states EF works until 1/2000sec MS woks when faster than 1/2000 and ES works when faster than 1/8000

Which lens are you using? Shutter shock is usually connected with zoom lenses and certain shutter speeds.

No, it's connected with floating ois elements or ibis sensors. Nothing to do with zoom - that's coincidence. Certain early ibis cameras had big issues (sony and Nikon) both had issues i believe and started pushing EFC shutters to address this. Fuji 16-80 and (i believe) 18-55 had some issues with this. But, yes Certain shutter speeds are more suceptible.

But this is also the reason why Fuji implemented an automatic change of shutter type based on shutter speed.

Just do note that 1/2000 may be a bit too late of a switch point to move away from EF (electronic front-curtain shutter, aka EFCS), hurting the bokeh in the process -- see here[1] for some simple tests of mine:

"In conclusion, it might be good if Fuji would change their "EF+M+E" electronic front-curtain (EF) to mechanical (M) shutter automatic logic so the switch happens at least for shutter speeds faster than 1/1000 already (if not 1/500 as GFX 50s supposedly does already), and not only faster than 1/2000 as it currently works, as we see 1/2000 is already too much for electronic front-curtain shutter to handle without (very noticeably) degrading out-of-focus areas."