I purchased this lens approximately 5 months ago for interior work, but found that 99% of the time I use the 24mm TS-E because the 17 is just a little too wide for my needs. This lens has been used only a few times and always indoors. It is in absolutely mint condition with all packaging, just as it came to me. The only difference between this unit and a new one is that I installed the larger shift knob that Canon supplies for use with full-frame bodies. The larger knob installs over the smaller one with a slightly longer screw. I do not have the shorter screw that was used with the smaller knob. Otherwise, the package you would receive is for all practical purposes just like you would receive had you purchased the lens new.
$2000 shipped & insured via UPS Ground service within CONUS. Prefer PayPal.