This lens is absolutely mint and has had a UV/IR filter on it since new. Glass is perfect and it's the latest version that's 6-bit coded.
This is a good one and I've never had any focusing issues with my M8. It front focuses slightly wide open but the focus point is within range, and is spot on from f2 onwards.
The only reason for the sale is that I think I prefer the 50mm length on my M8, so I'm on the hunt for a 50mm 'lux ASPH, as I'm mostly doing portraits and miss the shallower DOF.
Price is US$3200 net to me but includes shipping and insurance to a PayPal verified/confirmed address. Payment via PayPal.