What % (of new) would you consider appropriate for 2nd hand 'glass', assuming the lens is in v-good condition, or close to being so? My understanding is the remaining warranty is non-transferable to the second owner - Olympus policy apparently. There is risk with focus by wire glass, given electronics and other ''stuff' inside and this needs to be factored in the selling price. Edit: Any warranty issue is with the vendor, of course, under the 'sale of goods act' (UK), so this may not be Olympus policy as stated as 'matter of fact' above. When I phoned olympus about the OMD bezel crack they said sure send it in for repair at my expense for post and insurance. I then phoned the company I bought it from and they said no don't send it to olympus, but to return it free post (including insurance) to them and they would send it back to olympus. Great, but that's something you lose when buying second hand, so the price should reflect the situation. By how much though?