> It looks like the SMC 'M' lenses very often out do their newer 'A' > stable mates from what I can see reading PDML posts.
In my opinion, I do not think that this is usually the case, Pat. In many cases, the M and A lenses are optically virtually identical. Sometimes there may be mere subtle optical differences between them. Sometimes the A lenses may show distinct optical improvements (but not really all that often). The A 135/2.8 you asked about is certainly one glaring exception, and I don't think your statement quoted above is true. > I have two reasons for hunting out used 'A' lenses over the older > 'M's. > 1) My 35mm system is built around two Super A bodies. > 2) When I upgrade to the * ist D next year, I want to carry over > as much compatibility as possible with my lenses. These are two good reasons for choosing A lenses, where possible, Pat. But, don't overlook good older lenses, which can be employed in useful fashion on your Super A's and on the *ist D (and DS). Fred
