I bought it from Adorama used in 2002. I've used it only four times. Glass is clean. There are some scratches and scuff marks on the built-in retractable hood, but few on the lend body itself. Everything operates smoothly.
Optically, the PKA improves on the 400/5.6M by offering close focus (2.8 m), 1:5 magnification, and a FREE design (Fixed Rear Element Extension). $400 with original Pentax hard case, original Pentax front lens cap, third-party rear cap. Buyer can pay me over three months, in equal installments. Options: $35 for B+W UV010 multicoated (yes, multicoated) filter $20 for a VERY RARE threaded 77mm black metal hood, 4 inches long (101 mm), like new (photo available) $15 Cullmann heavy-duty quick-release plate (for use with the Cullmann QR system) PayPal (to my email address below), BidPay, money order, U.S. personal check. Insured U.S. Postal shipping $12 to U.S., $18 to Canada. Shipping anywhere else at cost. I won't be able to check my email till after 9 pm Eastern Time Thursday. [EMAIL PROTECTED]