The 28/3.5 AI is an excellent lens. It doesn't have the CRC feature of the 28/2.8 AIS. What you save by getting the 28/3.5 AI will leave you enough to get a 55/3.5 Macro and then some. The CRC feature is nice and I have it on other 28s like the 28/1.8 Konica UC Hexanon and the 28/2 Canon FD SSC. In the close range any of the 55/3.5 Micro Nikkors will be better than these 28mm lenses with CRC.