Problem with A6000 and 18-55mm F3.5-5.6 kit lens

[majko]

Greetings, I wonder if someone could help me with pinpointing the problem.

I am new Sony user (long time Canon user). Bought secondhand A6000 and used it for a few days with M42 to NEX adapter, since I have M42 lenses in abundance.

Today I received 18-55mm F3.5-5.6 OSS lens, wanted to compare it to Canon lens kit, and to tell you truthfully it is splendid little lens, much better than Cannon 18-55 lens. Until it kinda stopped working. Auto focus became very strange, it either not working with lens fully opened (motor is not working), or I can hear motor working with big F stop, but it is not focusing accurately.

Web search didn't gave me enough relevant result, so I would be very grateful if someone here could tell me what could be the problem, with camera itself or the lens.

Only thing that I have tried is to reset camera setting, but that didn't helped. Any ideas?

P.S. No one of my friends is using Sony, so I have no access to another lens to try, or another camera.

[Pieter]

Also happens with the camera in Auto (green) mode (check PASM dial)?

Bought the 18-55 new or second hand? Sounds like a lens issue to me unless you accidentally put the camera in A or M mode and dialled in a really small aperture (high aperture value), but from your post it seems like you know what you're doing regarding the aperture.

Does manual focus still work, and can you adjust the aperture manually? That way you can at least verify that both mechanisms are still in good order.

Edited July 18, 2019 by Pieter

[majko]

First, thanks for the reply. Yes, it is happening in all modes, bought it secondhand but with warranty. 
Manual focus is not working, just checked it (I forgot about it  , all canon lenses I have used had focus button on lens itself so it kind a slip my mind to try). 

I can see on screen slider that is moving when rotating ring on lens, but picture itself is not focusing. And another thing, after turning off camera, it wouldn't turn on until I removed lens and put it on charger. It was not charging with a lens on. With M42 adapter and lens it was both charging and functioning properly. Without autofocus, of course. 

[Pieter]

Do make sure that your camera is in focus mode: manual. Most lenses don't have direct manual focus override.

If that is the case, definately sounds like a broken lens then... Good you have warranty! Haven't heard of many of these breaking. It's better and more durable than the 16-50 kit lens at least.

Edited July 18, 2019 by Pieter

[majko]

Well, something is starting to get worse, a few minutes ago I got "invalid because lens not attached" when trying to change from manual to auto focus. Lens is not dropped, all contacts look clear and not bent, both from camera and from lens side.

 So, it is a lens, more probably than the camera? Thanks again.

[LiveShots]

Is the lens is fully inserted, keep twisting until you hear the click?

[majko]

Yes, and in locked position there is very little room for wiggle, almost none. Contacts on both camera and lens are clear, dry, no dust, no corrosion.

[Chrissie]

On ‎7‎/‎17‎/‎2019 at 10:12 PM, majko said:

used it for a few days with M42 to NEX adapter

There are really cheap  Adapters of this type out there, and they are cheap for a reason. Chances are high, that tiny metal chips or flakes may have lodged in the contact area of the body, causing this malfunction. Even though you claim that this area is "clean" (to the naked eye), I would advise to thoroughly wipe the contact area of the body with a microfiber cloth regardless.

20 hours ago, majko said:

"invalid because lens not attached"

This error message indicates, that communication between lens and body is interrupted, when the lens is, in fact, physically attached. This may be caused by malfunction inside the body, malfunction inside the lens, or malfunction in the contacts. Since the contacts are the only area accessible to you, I would definitely want to make sure that this is not the culprit, before sending off body and/or lens to a possibly expensive repair.