When my X-E1, with the XC 50-230 attached, finds a focus point, it is pretty quick. However, when it cannot find anything to focus on, then it takes an eternity before the lens has traveled the whole focusing range (and the red rectangle appears). I so understand that the X-E1 only uses CDAF focusing, while the X-E2 uses PDAF, which will be more reliable in low contrast situations. However, does the X-E2 (or X-T10) also get quicker to the conclusion that it cannot find a focus point? Or is the time that takes just a property of the lens? Anyone who tried the XC 50-230 on both the X-E1 and the X-E2 (or X-T10)? Thanks!