This may sound like a crazy post, but I could do with some nudging to help me decide which of these two lenses to SELL. I bought the 9-18 first and was happy with it, but the nagging doubts about whether I ought to have bought the 7-14 were lurking in the recesses of my mind, so when I saw a nice used one come up, I decided to buy it. The plan was to evaluate them both and then sell one - except that I can't make my damned mind up! Here's where my head is: - Sharpness is good on them both. The 7-14 is slightly better for sure, but the difference isn't night and day and I can live with the 9-18's performance. - Purple blob flare on the 7-14 is bad on my OMD. The 2A UV filter fix is a possibility to improve it, but it's hassle to source the holder and gel filters here in the UK. I'm guessing also that it's still not a 100% fix. - Fitting filters to the 7-14 is problematic. I like using high block ND and grad ND filters for landscape shots and whilst Cokin-style holders can be fitted to the 7-14, I'll need to use a universal mounting kit on the hood which is a fiddle to mount/unmount and probably scratches the hood too. - All the above seems to make the selling the 7-14 a no-brainer; but of course the 9-18 misses a big trick and it's called 7mm! Boy is 7mm a really nice wide FOV and when I look at the shots I've taken with the 7-14, nearly all are at 7mm. So, here I am - flip-flopping all the time. Keeping both seems a real indulgence!