Focus Locus
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| p.1 #1 · p.1 #1 · Lenscoat interference / weight / bogging down focus ring movements | |
I got a few Lenscoats for my longer lenses. Not because of the tree camo, but more for protection against nicks and scrapes, as well as insulation from surface temperature differentials on the (older) metal lens barrels contributing to internal fogging and condensation while working in humid climates.
In the past, the Lenscoats did not offer any material on the focus or zoom rings. But now, I see that they do. In fact, the Lenscoat model I'm thinking of buying next indeed provides neoprene sleeves that slip directly over and cover the zoom and the FOCUS rings.
So, my questions to you are...
1. Have you ever discovered any difference in auto focus performance as a result of the focus ring being "weighted" with the few extra grams of the Lenscoat ring wrapped around it?
2. Have you ever noticed any stiction or friction between the segments of Lenscoat wrap around the focus ring and the Lenscoat wraps around the lens barrel forward of or rearward of the focus ring?
I imagine that the lens engineers considered the mechanical resistance to rotation, and the mass of the focus ring, when calibrating the energy required to move the ring, and the speed with which a user might expect the ring to respond to achieve and maintain focus.
I imagine that adding another physical element to that focus ring might alter the calibrated predictive performance of the ring.
However, I imagine a lot of things that aren't necessarily true. So what say you?
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