Larry Colen wrote:

On Dec 10, 2009, at 12:38 AM, Boris Liberman wrote:

Larry, isn't there a some kind of clutch that you have to engage or
disengage prior to going manual focus?

If the lens is in autofocus and the body is in autofocus, then it will autofocus without the focusing ring turning. If the lens is in autofocus and the body is in manual, then it won't focus.

If the lens is in manual focus, and the body is in autofocus, it will autofocus, but the focusing ring will turn. It will not manually focus. If the lens is in manual focus and the body is in manual focus, then it'll focus manually. The problem being that if feels graunchy, the focus is not smooth.

Even with the lens off the body, the focus is not smooth.


Hey Larry,

The Siggie 20/1.8 EX DG is one of my faves.

You are quite correct on each quadrant of the matrix. I use it on manual most of the time, and yes, it does feel like I'm turning gears. It does the job so I no complain. Rather short throw too, so that helps

D

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