A new macro lens from my husband

I've been using a more lightweight Olympus camera this Summer, as my precious Canon 5d MarkII is a little to heavy for me to carry around for hours at a time. Specially with a big lens attached to it. But I love taking macro photos, and my husband surprised me this weekend with a brand new macro lens for the Olympus camera. I'm looking forward to start using it properly, I only took a few shots with it today to "warm up" a little. It always takes some time getting to know a new lens.