In article
>Many thanks for all the thoughts and ideas offered when I asked for
>suggestions on the photography of mediaeval roof bosses in English
>churches. It seems the question has provoked a large amount of interest!
>Herewith a brief synopsis of suggestions:
>* Avoid mirror lenses (even Nikon!) (...)
You sure didn't get that idea from me! I have used the older 500mm
f8 Nikkor mirror for many a published architectural detail photo
(works well with the TC14B for even greater reach) - and I never
thought much of the Sigma 400mm APO (maybe the new macro version
is better?).
Hope This Helps