a58/99 cannot use ssm lens |
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voodoosz
Newbie Joined: 11 December 2023 Country: Hong Kong Status: Offline Posts: 5 |
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Topic: a58/99 cannot use ssm lens Posted: 11 December 2023 at 14:50 |
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HI. I am from china. My english is not so good.
I have 3 cameras a99/a58/a350/ I have 2 lens sigma 24-70 and sony 70-200g with a ssm/hsm motor in it. They can use on a350. When I install them on a58 or a99.they cannot autofoucs. IF I install a len without ssm mator, all 3 cameras can autofocus. what's wrong? |
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Hezu
Senior Member Joined: 13 October 2007 Country: Finland Location: HKI/KSNK Status: Offline Posts: 4691 |
Post Options Quote Reply Posted: 11 December 2023 at 15:16 | |
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addy landzaat
Senior Member Joined: 22 April 2006 Country: Netherlands Location: Netherlands Status: Offline Posts: 15720 |
Post Options Quote Reply Posted: 11 December 2023 at 17:10 | |
Your English is better then my Chinese/Mandarin Welcome to Dyxum
You established that the cameras work and that the lenses work. I also think you should clean the contacts on the cameras and on the lenses first. Does the camera show the aperture value? Does it show an error message? If it is not the contacts, it might be a blown fuse inside the camera. |
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voodoosz
Newbie Joined: 11 December 2023 Country: Hong Kong Status: Offline Posts: 5 |
Post Options Quote Reply Posted: 11 December 2023 at 23:01 | |
camera show the aperture value,and no error message show. the contacts are clean. where is the fuse can I change it myself? |
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vitor
Senior Member Joined: 10 August 2006 Country: Portugal Location: Lisbon Status: Offline Posts: 2041 |
Post Options Quote Reply Posted: 11 December 2023 at 23:40 | |
From the description it looks like a blown SSM fuse. It isnt user replaceable. Maybe a electronic shop can do it.
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voodoosz
Newbie Joined: 11 December 2023 Country: Hong Kong Status: Offline Posts: 5 |
Post Options Quote Reply Posted: 12 December 2023 at 00:58 | |
ok thks
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voodoosz
Newbie Joined: 11 December 2023 Country: Hong Kong Status: Offline Posts: 5 |
Post Options Quote Reply Posted: 13 December 2023 at 05:57 | |
I check the service manual,then find the fuse and short circuit it.
And it is repaird. The ssm lens can autofocus now. thank you for advises. |
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vitor
Senior Member Joined: 10 August 2006 Country: Portugal Location: Lisbon Status: Offline Posts: 2041 |
Post Options Quote Reply Posted: 13 December 2023 at 09:57 | |
If you have disabled the fuse you risk damaging other components. Replacing the fuse is the only way to properly repair. |
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neilt3
Senior Member Joined: 13 September 2010 Country: United Kingdom Location: Manchester.U.K Status: Offline Posts: 3563 |
Post Options Quote Reply Posted: 13 December 2023 at 11:25 | |
Correct . If the lens has blown the fuse on two cameras , then presumably the lens is at fault and needs some attention to prevent further damage of the circuits the fuse was protecting. A bit like swapping a blown fuse in your house with a nail and wondering why your house burned down ! |
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voodoosz
Newbie Joined: 11 December 2023 Country: Hong Kong Status: Offline Posts: 5 |
Post Options Quote Reply Posted: 13 December 2023 at 14:43 | |
ok
I will find a place to repalce the fuse.I donnot have the tool. |
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