Does anyone know of a similarly priced wide lens which is as good as this lens in terms of image quality? With a similar price point, ish. The Panasonic 20mm is miles behind imho, so I am guessing the PanaLeica 15mm may also not compare. There is no exchange policy here in Thailand so I can't buy one like you can in The States to try for a few days. I can tell the PanaLeica 12mm is on a par or even better than the Sigma, but that is out of budget at something like $1200. Personally, I think it has too much perspective distortion anyway. Hence, me thinking of the 15mm. Thanks. ps. I asked this originally in the wrong forum and here are the replies, so I can go and clear that thread up. I can't add this quote from ionian in the same way: This probably needs a separate thread but what do you mean by as good? [I didn't specify IQ like I do now above] Image quality wise, pl15 is great - just check out the showcase thread [good point- will do that now]. I think the 20 is good too, no complaints on sharpness. Pl15 is better made than the sigma, smaller than the sigma, has (subjectively) better contrast than the sigma wide open, but costs twice as much [it costs less than 50% extra here].