I prefer to use the Tamron 2x flat field multiplier, which gives a 180/5
that focuses down to 1:1. Much more working distance for those real
close-ups.
Moose
Roger D. Key wrote:
No owners seem to have replied, so I will try before I go to bed.
The first two versions (those with f2.5 max.aperture) have a matched
extension tube (18F I believe). But you can use other tubes to achieve the
required 45mm extension; the Olympus set 7+14+25 will give 46mm for
instance. There are various third-party tube sets too.
Roger Key, Copenhagen
Sean Davis wrote:
For those who have one of the variations of the Tamron 90mm macros, do
the two older ones which only go 1:2 life size take a special matched
converter or tube? is there something easy to find that you can use?
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