>Subject: Re: EOS Wondering if I should return my 50 1.4 USM
>
>"Wallace, Brian" wrote:
>
> I just got a Canon 50 mm 1.4 USM lens from B&H (of course), and there
> are two things that concern me. First, the focus ring is looser than any
> of my other lenses -- could that be because it's not a ring-type USM
> like my other lenses? It just seems so poorly dampened ... I dunno, it
> works and everything, but it just doesn't feel right. Also, when I mount
> the lens on my camera, the last bit of the turn is kind of rough --
> almost like there's some kind of grit between the lens and the camera
> body, but there isn't. All of my other lenses (I've owned six total)
> have slid easily into place.
>
> 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". On mine the focus ring does feel gritty and a tad loose compared with other
lenses. 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.
- John
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