Backlight fitness is very good, Vignette okay, CAs very low, almost no distortion.
On the XT-1, the autofocus is quite fast, if a little noisy. The lens must be tightened with me with some muscle strength, which is preparing me a little stomach ache. I hope this keeps the bayonet out.
Sun visor is unfortunately not there. I use it as a Always plan and am very happy with it.
