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rattle in a lens

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Rhidav View Drop Down
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Post Options Post Options   Quote Rhidav Quote  Post ReplyReply Direct Link To This Post Topic: rattle in a lens
    Posted: 07 July 2023 at 12:53
hi all I've just joined at years of reading reviews

the question I have is that my Sigma Macro 150mm F2.8 EX DG HSM has a rattle it seems that the centre part of the lens is loose is this normal??

When its attached to my A77ii it works fine focus is spot on

Any advice appreciated
 



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nandbytes View Drop Down
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2023 at 13:26
I don't know about this lens in specific but there are lenses with floating element design where some elements move around when not connected to the camera. Does the movement stop when you have the camera turned on?
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Hezu View Drop Down
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Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2023 at 14:16
Originally posted by Rhidav Rhidav wrote:

hi all I've just joined at years of reading reviews

the question I have is that my Sigma Macro 150mm F2.8 EX DG HSM has a rattle it seems that the centre part of the lens is loose is this normal??

When its attached to my A77ii it works fine focus is spot on

Any advice appreciated
That lens has optical stabilizer, so it is possible the lens element(s) that archive that function move and cause the noises.
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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2023 at 15:16
Just shook my Sigma 105/2.8 EX DG OS HSM
There is something inside that seems to move - say "it rattles" if you will. Like Hezu said, it probably the OS-system. My Canon EF 24-70 1:4 L IS USM has similar behaviour.

And welcome to Dyxum, Rhidav
Why not follow me on Instagram? @Addy_101
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japp View Drop Down
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Post Options Post Options   Quote japp Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2023 at 15:36
this is indeed true, i also own this lens and have found that you can get rid of the rattle if you put the os (optical stabilisation) to off before getting the lens off your camera body.

this way the lens puts the stabilised lens elements to a set point wich will hold it there (kinda like focus hold but for he stabilised elements).
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Rhidav View Drop Down
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Post Options Post Options   Quote Rhidav Quote  Post ReplyReply Direct Link To This Post Posted: 09 July 2023 at 12:15
Thanks for all of your response
It is the optical stabilized lens & having given it some more play time it is quite when on the camera body
many thanks for all of your help
 



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