This is a great lens. Rated excellent anywhere you read a review of it. I received it as a gift from a well meaning relative, but it does not suit my shooting style (see my web page and you will understand). I shot one roll of film with it, to try and see if I could use it. It is absolutely mint, plus I will include a thin B&W UV filter (Schneider glass), a $105 dollar value. You can read user comments of this lens at http://www.photographyreview.com/35mm+Primes/Sigma+20mm+F1.8+EX+DG+ASPHERICAL+RF/PRD_85099_3111crx.aspx It also comes with an extended warranty from MACK (7 years), which I will include with the lens, an additional $50 value. I sometimes sell on Ebay, and you can check you feedback there by looking up "anomy", without the quotes. I need $400 U.S. (firm) plus shipping (I will find out actual costs and let buyer know). Contact me through my e-mail at firstname.lastname@example.org if you are interested.