I fell into the lazy trap today and didn't make it out. will fix tomorrow. Also I set up with 2x remote triggered flashes on this one as well as a backdrop.
@kwind Thanks, I experimented up to F22, but it really started to get soft. For some odd reason I am getting convinced that this lens is softer than it used to be. I don't' have hard evidence, but I remember it being sharper in the past. Maybe the drop ti took months back had an effect.