hi, i have a spare NOKTON 17.5mm f/0.95 lerns for sale. while i haven't taken mine of the GH2 since i got it:), my business partner has switched to Nikon and is looking to sell. we bought them at the same time last summer from a reputable Ebay reseller. stephengandycameraquest. excellent condition only known issue is a sand grain in focus ring makes grit sound at some points of focus. we are looking to have it serviced next week but if anyone is interested in making an offer we can skip the service and sell it with Paypal. we would like to get $900. if no offers the next stop Ebay. i will follow this post so i get email replies, thought it was automatic. last time i listed something i missed the messages. thanks!