Taken in our back garden the other day - winter blooms in January 2011. Low-ish resolution jpegs processed in CaptureOne v5.
I was going to sell the Tamron along with some other OM system kit until I saw some images posted on this forum, and was encouraged to try it on my E-PL1.
I was using an Adaptall OM mount with an Oly OM to 4/3 adapter and then a Panasonic 4/3 to m4/3 adapter. It sounds cumbersome, but in fact it's stable and solid and the lens handles well. I like the 180mm focal length for garden photography.
This was on a Manfrotto CF tripod and Markins ballhead.
I must try the 1:1 matched multiplier...