How close can you get?
Here is the closest I am currently able to get using:
New close up filter, 1.4TC and 90mm Tamron. Which is 6:1 I think. Needs a lot of light though.
This is what I am getting now :) with my new lens and 90mm Tamron macro.
90mm Tamron, Raynox DCR-250, 1.4x TC...