I sharpened up the focus on this in post, and I can say I am very happy with my initial results using the Sigma. It does have Optical Stabilization, but that doesn't help when you can't keep the subject in the center of the frame. This lens weighs 4 pounds. :roll eyes: I have been testing hand-held at different shutter speeds and focal lengths. I can't wait for the monopod to arrive.
I would probably be frustrated had I not already had some experience with high power magnification using a telescope. I am excited about taking photos for the first time since my Dad passed.