b top gun wrote:
I had a Tamron 150-600 first generation, bought it to use on my D7100. My experience with that lens, it was slow to lock focus, it liked to wander and maybe only half the shots I got were not soft or not out of focus. Finally dumped it. Because I now have a Z8 and still have the D850, I have been debating with myself as to whether I want to Nikkor 180-600 or the Nikkor 100-400 and get a 1.4x teleconverter to use with the 100-400 when I want a little more reach. The 100-400 would replace my 70-200 f/2.8 Nikkor, not that I would sell off the 70-200, just mount it on the D850 when needed. I do not do much wildlife photography, and a not sure I NEED a lens that goes beyond 200 mm; I can always rent something rather than purchase one.
I had a Tamron 150-600 first generation, bought it... (
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Make sure you go to a place and actually hold a 100-400 Tamron lens. I may have bit off more than I can chew with that one! It is heavy. I had to by a new head for my tripod, a ring for the lens, and I cannot carry it in my pack with my gear. I need to lift weights to build up my muscles!