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01-04-2016, 01:33 PM   #1
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HD 35 macro - screw drive problem

Hello guys.

I have a problem with my HD 35 macro lens.
The screw drive is freely moving when you focus.
On the camera the change of focus is almost impossible,, only with force.

Is it possible to repair it by my self or does it need a service in a center.


Thanks for your help

01-04-2016, 01:37 PM   #2
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Is your camera in MF mode when you are focusing on the camera?

The screwdrive and focus ring are 'linked' together, if the camera is in AF mode when you turn the focus ring you are turning the in-camera focus motor with force, this is potentially damaging the camera AF motor. Make sure the camera is in MF mode to focus manually. Also the 35 ltd does not have quick-shift.

Hope this helps!

Last edited by bertwert; 01-04-2016 at 01:44 PM.
01-04-2016, 01:52 PM   #3
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It seems like the quick shift clutch i not working, which might be difficult to fix yourself.

But setting the focus switch on the camera to manual focus will disengage the screw-drive motor from the lens, which let you focus manually. So it can be used as a temporary workaround for the problem.
01-04-2016, 01:55 PM   #4
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QuoteOriginally posted by bertwert Quote
Is your camera in MF mode when you are focusing on the camera?

The screwdrive and focus ring are 'linked' together, if the camera is in AF mode when you turn the focus ring you are turning the in-camera focus motor with force, this is potentially damaging the camera AF motor. Make sure the camera is in MF mode to focus manually. Also the 35 ltd does not have quick-shift.

Hope this helps!
The lens database lists the HD 35mm LTD as having quick-shift

01-04-2016, 01:57 PM   #5
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QuoteOriginally posted by enoeske Quote
The lens database lists the HD 35mm LTD as having quick-shift
Looking around, apparently it does. I was under the impression none of the limiteds (save the 20-40) had quickshift.
01-04-2016, 01:59 PM   #6
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The FA Limiteds do not. The DA limiteds do have quick shift.
01-04-2016, 01:59 PM   #7
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Service! (Or return, depending on how new it is).
01-04-2016, 01:59 PM   #8
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QuoteOriginally posted by bertwert Quote
Looking around, apparently it does. I was under the impression none of the limiteds (save the 20-40) had quickshift.
The DA Limiteds have quick-shift; not so the FA Limiteds...

01-04-2016, 02:00 PM   #9
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QuoteOriginally posted by jatrax Quote
The FA Limiteds do not. The DA limiteds do have quick shift.
QuoteOriginally posted by BigMackCam Quote
The DA Limiteds have quick-shift; not so the FA Limiteds...
I stand corrected...
01-04-2016, 02:36 PM   #10
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Thank you all for your advices.
The temporary setting to MF and focusing helps the issue. The lens behaves normally after setting to AF, but at some point it stuck again and cant be moved.
I will use it in MF mode and later send to service.
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