On Tue, 26 Jun 2001 12:19:24 +0530 (IST), Ayash Kanto Mukherjee wrote:
>It is great. Have you tried some bugs/bees having dimension less than 24mm
>by 36mm?
Yes, I also did bees and flies, usualy sitting on flowers, gathering food ...
> Butterflies, in general, are quite big but they are alien
>sensitive. It is good to here that a macro lens with a minimum focussing
>distance of 1 feet can take shots of butterfly but you don't need to go
>that close to the subject unless and until it smaller than you negetive
>frame, isn't it?
That is right, I usualy calculate more with magnification factor more than with
focusing distance anyway. Makes it easier to compare lenses too.
The focusing distance is measured from subject to the filmplane, what you
really want to know for macro is the distance from the front-lens to the subject,
and that depends on the focal length of the lens but also the build of it.
BTW: One advantage of the 100mm macro lenses is that they are a bit closer,
allowing better coverage by a ring-light (flash).
I sometimes find that the 200mm macro is too far away to use the AF-140C flash
wich has a rather low guidenumber.
Regards, JvW
---------------------------------------------------------
Jan van Wijk; www.fsys.demon.nl
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