Vibrating noise: Sigma 70-300mm F4-5.6 APO DG macro lens
Good day. I have a Sigma 70-300mm F4-5.6 APO DG macro lens which often makes a worrying vibrating noise immediately after I attach it to my Sony A58 DSLR and switch the camera on. After a few seconds, the noise generally stops, and then the lens and autofocus works fine and quietly. Should I be worried? What might be causing the noise? Is there something I can do to avoid it? Thank you!
Hi Alan,
I have never used a Sony but am just wondering if the noise you hear is either the autofocus system doing an initial self test or maybe Sony's in-camera image stabilization initializing. Does it happen only with this lens? Do you know anyone else with a Sony camera who could test your lens on their camera or maybe a Sony shop where you could take it and ask them to mount your lens to a display model to check?
I am assuming that you have at least one other lens that does not do this.
If everything is fine after the initial startup then maybe it's not too much of an issue.
I have never used a Sony but am just wondering if the noise you hear is either the autofocus system doing an initial self test or maybe Sony's in-camera image stabilization initializing. Does it happen only with this lens? Do you know anyone else with a Sony camera who could test your lens on their camera or maybe a Sony shop where you could take it and ask them to mount your lens to a display model to check?
I am assuming that you have at least one other lens that does not do this.
If everything is fine after the initial startup then maybe it's not too much of an issue.
Thanks for the reply, Eddie. It only happens with this one lens, and the noise started very recently. The noise also occurs if I use this lens in my other Sony DSLR (A390). I have a few other zoom lenses, including Tamrons, Sigmas and Minoltas, but they are all silent. It definitely sounds indicative of a problem, to me. It sounds like it could be plastic gear wheels grinding, rather than engaging, but I'm only guessing. The lens's focusing and zoom rings are not particularly stiff when operated manually.
PS.. Here is a 13-second video where you can see and hear the issue happening:
https://youtu.be/eUf4itn5Eb4
https://youtu.be/eUf4itn5Eb4
Yes, that does sound like a problem and as it is happening on the other camera too. It is far too loud to be a normal operational noise. The focus is trying to extend as well while it is grinding so it seems a definite fault.
I probably would consider that lens a risk to the camera with continued use.
It may be an option to trade it in on MPB.com for a similar lens as I think it may be more costly to repair than to buy a similar one second hand.
I probably would consider that lens a risk to the camera with continued use.
It may be an option to trade it in on MPB.com for a similar lens as I think it may be more costly to repair than to buy a similar one second hand.
