> > Hi,
> >
> > I have a 100-400 IS lens, and had noticed a small amount of
> play when
> > mounted on my EOS3. The lens rotates, only about 1-2 mm, on the
> > lens mount.
> > I was wondering whether this was the body or the lens. I
> have subsequently
> > got an EOS1V, and have also noticed this movement. There is no
> > movement with
> > any of my other lenses on either of the two bodies, so have
> concluded that
> > it is the lens that is causing this.
...
>
> Hi Steve,
>
> I doubt it's your EOS 1v body mount. There is some
> rotational play on all
> of the lenses but the play seems to get larger on the "L"
> class glass for
> some reason.
>
> I've tried to isolate this play over the years with several
> different EOS
> bodies (EOS 50, EOS 5QD, EOS 1, EOS 1n, EOS 1nRS), I have had
> access to with
> several different lenses (EF 15 2.8USM, EF 20 2.8USM, EF 50
> 1.4USM, EF 85
> 1.8USM, EF 300 2.8L, EF 400 2.8L, EF 600 4L, EF 17-35 2.8L, EF 20-35
> 3.5-4.5USM, EF 28-70 2.8L, EF 28-105 3.5-4.5USM, EF 70-200
> 2.8L, EF 100-300
> 4.5-5.6USM), I have had access to and the play seems to be
> most prevalent on
> the "L" lenses starting with the EF 17-35 2.8L and getting
> worse as the
> lenses get bigger up to the EF 70-200 2.8L where the play
> seems level out to
> be the same for all larger "L" teles. It's also very noticeable with
> ordinal type Canon EF 1.4X and EF 2X converters. I have not
> tried to stack
> the EF converters as I lack the Canon 12mm extention tube.
Hi Chip
Of the L lenses, I have the EF 17-35/2.8L and the EF 500/4L, and there is no
play on these on either of my bodies. I also have the 28-135 IS, the 50/1.8
MkII and the 70-300 IS, the 1.4X MKI and the 2.0X MKII, and there is no play
with any of these either. It is just the 100-400L.
Anyway it would appear that I have nothing to worry about, which is my main
concern.
Steve
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