Toralf Lund wrote on 04.10.05 9:47:

> Is there really anything ultrasonic about it, by the way?
FTM - Full Time Manual - you can tweak focus by just turning focussing ring
without having to switch anything on camera. Fortunately it finally arrived
to the newest Pentax lenses as QSF - Quick Shift Focus (available in DA and
DFA lenses). Quietness and smoothness of operation is a big plus too, but it
is often completely unuseful, when SLR has loud mirror (like for instance
Canon 1D, which produces sound level similar to hand clapping).

-- 
Balance is the ultimate good...

Best Regards
Sylwek

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