This week i got my P12-35. And whatever the reviews say, this lens is TOP quality for me its definitely worth $1K. The zoom and focus ring run like creamy butter, and that was key for a shot ive been waiting months to do. i woke up 5am pitch dark this morning to do the first shot. And after i got it, did some other ones, including some with my P100-300. Sunrise was at 6:08 more or less. now a couple more with the P100-300 hope you guys like it.