This is certainly one of the finest wide angle lenses that you can use with the M cameras and it's not easy to find used in mint condition. Comes with the Zeiss finder which isn't cheap, but is bright and beautiful, box, papers, step-up ring and B&W IR filter. Asking $3600 OBO and might consider a similar condtion 28 cron in partial trade. I loaned this to Guy who shot a spectacular landscape (see image below) with it during his recent workshop. Beautiful lens, but when I shoot landscapes I generally use my MFDB gear.