Just got my hands on the 55/2.8 Micro AIS that I have been chasing for some time, I have taken it for a very quick test with my D50 (no metering) and my initial impressions are very good indeed. This lens is blessed with the classic Nikkor AIS built quality. It has a very sturdy metal exterior and the control surfaces handle beautifully; the focusing in particular is wonderfully smooth and allows small adjustments to be made easily. Image quality is similarly excellent, I have not had time for a proper test but the few flower macros that I shot near the close focus limit seem impressive. The overall IQ seems on a par with my modern day Sigma 105mm Macro. I know people have been looking for samples from the 55mm Micro series here recently so I thought you all might benefit from my initial experience, I shall keep this thread posted as I spend more time with the lens. Here is my only sample so far which is worthy of posting so far, it was taken fairly close to the 1:2 reproduction limit at F/5.6.