El Pedro wrote in post #17282763
BTW, the great thing about an AF lens, it can MF too.
It's not great. It's more like "backup" and I've yet to encounter an AF lens that has GOOD manual focus precision (including L glass).
EverydayGetaway wrote in post #17282862
True, but often not nearly as well since AF lenses aren't usually optimized for manual focus.
^^ This. Very much so.
My 30 year old manual lenses have much more precise and smooth manual focus with a long throw, compared to any of my nice autofocus lenses with full time manual focus as well. Bottom line is that a lens is either built for manual focus, or it's an autofocus lens with a fairly inaccurate and imprecise manual focus option.
The only AF lens I own that I use manual focus on regularly is a 600mm lens.
I straight up suck at MF with my AF lenses. They're not good for MF at all.
But I can nail sharp focus with a junk 30 year old manual focus lens no problem.
And my modern manual focus lenses are also easy for me to nail sharp focus, even at very wide apertures (F1.4).
To me, they're totally different lenses for two very different approaches to photography.