And Practice.... welcome to macro world...
Thank you for the kind comments about those dragonfly pics in the PM. I thought I would look for this thread to answer you here.
Those shots are indeed with the K100d and tam 70-300. The first may have been in the regular mode, as the exif says 160mm. And I looked at
the original and it is a fairly tight crop.
I try to shoot in A mode, between F9- to F13 ish in natural light or up to F22 if using a flash.
I know when I use the tammy for bugs, especially if I am in the 'macro' mode... I always try to use a tripod/monopod or brace
myself against something. Especially when at 300mm, like the last shot. It is the best way to have a chance at a sharp shot.
300mm with the macro on is really hard to handhold perfectly as just a slight movement and the minute details begin to blur.
This is the same dragonfly at 300mm with almost no crop... Definately had the tripod for that one.
As others have mentioned, the raynox 150 or 250 on a zoom like the da 50-200 or even some primes give some really nice results too
although the focus distance gets close with the macro adaptor lenses.
Here is a shot with a raynox 250 macro adaptor lens on a old 58mm lens
And one with a sony 3358 macro adaptor (about the same magnification as the raynox 150) on the same 58mm lens
And here two with the raynox 250 on the 85mm jupiter 9
You may not need to get this close for most butterfly and bee shots... First I would practice with the tamron 70-300 in macro mode and on a tripod...
you get more distance from your subject and you can zoom to frame the shot.
If you want to go closer in, then by all means get a raynox 150 or a dedicated macro lens...
But with macro's, practice gets you closer...
and P.S. If you get 1 bug macro keeper in 20... you are doing better than me.
Feel free to pm me anytime.