I'm at a cross road. I have an extremely sharp Tamron 28-75mm f2.8. If you notice my signature, I also have a Tamron 17-50mm that should be in my hands on Tuesday. I'm debating of whether to sale the Tamron 28-75mm and buy the Canon 85mm to be used most exclusively for photo shots and possibly some still animal photos. I know I give up the 25mm on long end though I do have a 70-200mm. Of course it's not 2.8 so might not work for a particular shot. I could probably keep both lenses and still buy the 85mm but camera bag is getting mighty full. I have a 70-300mm along with the 70-200mm so maybe my many years in the military makes me lean towards redundancy. Any thoughts?