> From: "jgayman" <[EMAIL PROTECTED]>
> >"Wallace, Brian" wrote:
> >
> > I just got a Canon 50 mm 1.4 USM lens from B&H (of course), and there
> > [....]
> > For those of you who also own the lens, does the loose focusing ring
> > seem normal? And should I be concerned at all about the rough coupling
> > between camera and lens?
>
> I know you have received other reports to the contrary but my experience with the
>50/1.4 is
> exactly as you describe. I have a lot of Canon lenses... USM, non-USM and L-series
>and the
> 50/1.4 does feel different.
> If I recall, it is USM but not "ring USM".
It's a micro USM motor, not the ring type and it's the ONLY Lens that
offers FTM with a micro USM motor. All others use ring-type USM drives.
> On mine the focus
> ring does feel gritty and a tad loose compared with other lenses.
Exactly my feelings too. The gritty feel comes from the gear needed by
the micro USM. Ring-type USM does not need a gear but drives the FTM
mechanism directly.
> I was concerned about this
> when I bought the lens and I was assured that it is normal and due to the non-ring
>USM motor.
> Despite the strange feel of the focus ring, the lenses works wonderfully. I think
>your's is
> fine.
Same here. I've seen no ill effects from mine. Superb pictures and AF
sure is OK.
Regards,
-Hubert
--
Hubert H. P. Wachter Phone : +423 2324289
Bartlegroschstr. 27 GSM : +41 76 5455859
9490 Vaduz E-Mail : [EMAIL PROTECTED]
F. Liechtenstein GSM-Mail: [EMAIL PROTECTED]
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