Archive 2011 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

jzucker
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p.1 #1 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

Trying to figure out if there is a problem or if this is normal. In the close range of the focusing ring with IS set to 1 and autofocus on, when attempting to fine tune the focus (focusing ring) there seems to be a hitch. It almost feels like the glass is doing a shift.

Is that normal for this lens?

Dec 13, 2011 at 05:59 PM

squareeyez
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p.1 #2 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

havent noticed anything like that with mine.

Dec 13, 2011 at 06:05 PM

squareeyez
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p.1 #3 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

Are you maybe referring to the way the IS motor is stopping? I have almost always felt some vibration from that.

Dec 13, 2011 at 06:06 PM

jzucker
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p.1 #4 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

squareeyez wrote:
Are you maybe referring to the way the IS motor is stopping? I have almost always felt some vibration from that.

Not sure but it seems to only be happening at the close end of the range when zoomed to 200.

Dec 13, 2011 at 06:08 PM

skibum5
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p.1 #5 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

jzucker wrote:
Trying to figure out if there is a problem or if this is normal. In the close range of the focusing ring with IS set to 1 and autofocus on, when attempting to fine tune the focus (focusing ring) there seems to be a hitch. It almost feels like the glass is doing a shift.

Is that normal for this lens?

what if IS is off?

Dec 13, 2011 at 09:49 PM

jzucker
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p.1 #6 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

skibum5 wrote:
what if IS is off?

If IS is off, there is no hitch. My other IS lens does not behave like this but maybe it's due to the lens arrangement?

Dec 13, 2011 at 11:03 PM

jzucker
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p.1 #7 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

Just re-checked with my 24-105 F4L IS with IS *ON* and there's no hitch.

Dec 13, 2011 at 11:06 PM

Geert Koning
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p.1 #8 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

No hitch with mine.

Dec 14, 2011 at 01:59 AM

skibum5
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p.1 #9 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

jzucker wrote:
If IS is off, there is no hitch. My other IS lens does not behave like this but maybe it's due to the lens arrangement?

it's definitely not simply the IS spinning down and turning off i take it?

anyway if not, that sounds odd

Dec 14, 2011 at 02:07 AM

Bullseye5d2
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p.1 #10 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

Dec 14, 2011 at 10:09 AM

scalesusa
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p.1 #11 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

I've never felt anything like that with mine either. If its in warranty, get it serviced. It may be a sign of something failing, so its usually better to get a repair done sooner rather than later.

Dec 15, 2011 at 01:15 PM

EB-1
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p.1 #12 · Does the 70-200L F4L IS lens have a "hitch" in the focusing?

None here either.

EBH

Dec 16, 2011 at 01:19 PM


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