topic Re: Lens judder in Alpha & NEX interchangeable lens cameras

Lens judder

ohgreyone — Wed, 08 Aug 2012 22:17:40 GMT

Hi, I have a Sony a580 DSLR and I'm using a Sigma 70-300 lens. It judders when I turn the camera on and off.

Although it seems to work ok in between. Any ideas why?

Thanks

Re: Lens judder

blaireau_photo — Thu, 09 Aug 2012 21:00:35 GMT

Hello Jo - Welcome to the Sony Forums

When you say 'judder', do you mean a brief vibration or shake? If so, this is a normal part of the camera that gives a brief vibration to the sensor to remove dust and keep it clean. If it starts occuring during normal use, this may indicate a problem.

Thanks,

Simon

Re: Lens judder

ohgreyone — Thu, 09 Aug 2012 22:22:52 GMT

Hi Simon

This is not a normal vibration. It has only recently started doing it with this lens and it's a definite noisy juddering.

As though the motor has got stuck. But just on start up and shutdown.

Thanks

Re: Lens judder

blaireau_photo — Fri, 10 Aug 2012 08:08:11 GMT

Hello again

Thanks for the further information. If the noise doesn't sound like a normal mechanical movement within the camera then there may well be an internal fault. If it is only happening with this particular lens then this may have isolated the problem and the best course of action will depend upon how long you have owned the lens i.e. if it is less than a year, it may be covered the the lens manufacturers warranty (Sigma).

Thanks,

Simon