This is a bit of an odd question. It is neither an EF lens, nor is there any other place for a converter lens like this, because I am not exactly sticking it on a Canon Powershot or Ixus either. But since POTN has been generally forgiving and helpful I thought I would ask anyway (so I ask your forgiveness if you have been inconvenienced clicking this thread. I am sure Belmondo will be along shortly to ban me, or worse, imprison me in certain forums for my transgressions.)
I am looking for a 43mm wide angle converter and I'm wondering if you have any recommendations for a good one with low CA and low distortion. I know the S5 (and similar) owners have a few good ones.
I am quite aware that these converters are seldom on par with the dedicated ultrawides like 17-40/10-22, but I have no choice as I am sticking this on a fixed-lens camera with 43mm thread. The alternative would have been to cough up an additional $1.2K for a version with a 28mm WA equivalent (instead of 40mm wide end) and that's simply $1.2K of money I do not have. Hence me needing to resort to this solution.
So fire away