On my wish list is a wide angle zoom. I am presently limited to my 18-70. I find that I do a lot of shooting at the 18mm setting and wish I could go wider. I have been thinking of the Tamron 11-18 which has gotten very good reviews and the samples that I have seen from it look great or the Sigma 10-20 which seems to suffer from sharpness issues. I am also seriously considering the Nikkor 10.5mm Fisheye lens as I really don't think I would really need a zoom in this range. I would like the 10.5 for the effects of a fisheye for those "artsy" photos. I am not considering the (3) 12-24 offerings. I have noticed a few of you have the 10.5, what are your feelings on this lense and are you sorry for buying it? Do you use it often or do you think a wide angle zoom would be more practical? Any examples from the 10.5 would be appreciated.