cyvideo
Veteran
Hmm! That's interesting. I use the 28-135 a lot on the FX6. Just find it a very usable combo and "Wide" is the setting I always use with that lens. Can't say I have had any issues with either, LO or Hi Base.I think it also has to do when setting the AF area to Wide (or that is what Sony Service told me when I had the FX6 & 28-135 in for a clean/service).
Chris Young