I just got an X-Pro2 (with the 23mm/2 lens) and I'm noticing some strange lag when shooting. When shooting as follows:
* Manual focus
* Manual exposure (aperature, shutter speed and ISO)
* Instant AF set to AF-C
I'm noticing two sources of lag:
1. When back button focusing (AF-L is held down), there's a lag when half-pressing the shutter as it locks focus. Is there anyway to disable this? I don't want the focus to be locked while back button focusing, regardless of if the shutter is half-pressed or not... This makes AF-C via back-button focusing a lot slower than AF-C mode, which makes back button focusing pretty unusable.
2. Using the ERF while its zoomed in to the focus point, there's a lag when the shutter gets half-pressed. Strangely, this lag doesn't seem to happen (or is much shorter) when the ERF is displaying the full frame or when using the OVF or EVF.
Basically, I'd like a shutter half press to do absolutely nothing when in using manual focus and manual exposure. Are there any other settings I need to configure?
