On Thu, 09 Sep 1999 13:39:44 GMT, bonyparte@my-deja.com wrote:
[...]
>I don't think a normal 50 mm would be all that useful for macro. The
>problem is working distance - how close you have to get to the subject.
>A 55-60 mm true macro lens would be better but you still have the
>problems with distance. I don't think the single element close up lenses
>are very good (everything I have read about them says that). The two
>element ones are very good, but then they are only for lenses greater
>than 100 mm.
[...]

The achromats actually can work fine optically on 50mm
lenses - the problem is the one you pointed out: too
little working distance... Too bad - an E-Series
Nikkor with an achromat on it makes one VERY compact
macro lens! ;-)