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SLT a77ii something strange

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MedicineMan999 View Drop Down
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Post Options Post Options   Quote MedicineMan999 Quote  Post ReplyReply Direct Link To This Post Topic: SLT a77ii something strange
    Posted: 07 February 2017 at 06:30
When I have a Sony problem I come here!
I've been immersed in the a99ii for a while but tonight blew the dust off my a77ii and something very very strange.
When I pop on a Minolta 20mm F2.8 all is good. Everything just works. Same with my Minolta 100-400mm, all is well.
BUT when I put on the 18-135 SAM it will not focus, will not release shutter. Worse in the viewfinder is see F-- where I should see an aperture value. Even in Aperture priority it's still F--
Any clues?
I've already done a factory reset.
Worse my 70-400Gii will not focus either.
Yes C is selected on the front dial.
Even stranger, when I put the 18-135mm on the joystick gets 'sticky' with wierd responsiveness.
Thoughts?
Thanks for any suggestions save sending off to Sony repair ;)

Forgot to mention that all the lenses mentioned above work perfectly on the a99ii.

Edited by MedicineMan999 - 07 February 2017 at 06:43
 



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SnowFella View Drop Down
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Post Options Post Options   Quote SnowFella Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 06:47
First call of business would be to clean the contacts on the camera (gently!) as it sounds like it doesn't make a perfect connection to the lenses.
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Aavo View Drop Down
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Post Options Post Options   Quote Aavo Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 07:04
+1
a6500 & some nice e-mount lenses. Be fond of photography - this is the way to alleviate stress
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AutumnRose View Drop Down
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Post Options Post Options   Quote AutumnRose Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 07:23
It only happens with SAM or SSM lenses? It sounds like the same thing that failed on my a580. I didn't notice it until I got my first SAM lens when the camera was 13 months old. I forget what Sony called the part, but said they would fix it for $113 because it was just past the warranty.
Kathi
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MedicineMan999 View Drop Down
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Post Options Post Options   Quote MedicineMan999 Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 08:29
Thanks to all for your thoughts.
How to gently clean the contacts?
Something I've never done :(
Well never had too :)

Stranger still contacts work perfectly with the Minolta lenses
but not any of the Sonys ???

Edited by MedicineMan999 - 07 February 2017 at 08:37
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amrep View Drop Down
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Post Options Post Options   Quote amrep Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 10:34
Probably a blown fuse or other part in lens motor power supply (which I think is embedded on the main board in the A77II). Then SAM and SSM lenses will not work, 5-pin (or better 'contact points') lenses will work.

This is a quite common failure in A-mount bodies (AutumnRose is one of several who has experienced this).
 



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happyjack View Drop Down
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Post Options Post Options   Quote happyjack Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 12:17
I had a problem with my A77II not autofocusing properly too, but luckliy a factory reset fixed the problem.
But I do occasionally get the F.. come up.Most times a removal and re-attach of the lens fixes it.

Before the factory reset I would also remove the battery and let everything power down, re-install the battery (fully charged) and then do a reset.

I would use a clean cloth a little iso-propyl alcohol on it and gently lean both the camera and lens contacts.

Failing all these maybe amrep's suggestion. I'd call an authorised repair centre and ask them about it. As you're in the States maybe call another one too to double check?
Or tweet The Donald - he thinks he has all the answers.
7D turned A77,77M2,MIN 50/1.4,MIN100/2.8macro,Sig10-20,F4-5.6,SAL70-300G,18-250,CZ16-80,SAL70-200/2.8,75-300,24-80/2.8SAM, TAm 150-600G2

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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 12:32
Conceivably you might have a contact issue with the three 'extra' pins that SAM/SSM lenses use and Minolta screw-drive ones don't (or at least, not in the same way, even if they have 8 pins).
Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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adhox View Drop Down
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Post Options Post Options   Quote adhox Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 14:36
I had the same issue with my A65 - fine with screw driven AF lenses, but wouldn't talk to my SSM lens. (http://www.dyxum.com/dforum/a65-does-not-see-70400_topic122058_post1459606.html#1459606)

Fortunately I discovered the issue soon after I bought the body and so there was no awkwardness about returning the camera. Due to the lack of Sony support for A-mount in Oz the cost of repair under warranty was going to be more than I paid for the body. I hope you get better support where you are because the A77ii is a nice tool.
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MedicineMan999 View Drop Down
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Post Options Post Options   Quote MedicineMan999 Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 16:20
Thanks to everyone for the answer(s). Blown fuse on the main board sounds like my luck...and to hear it is a known defect on a-mount makes me wonder when I pick the a99ii now :(
Is what it is.
Robert
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 16:29
The little surface-mount fuses can be obtained commercially so if you fancy a DIY job ... good luck with finding a circuit diagram/parts list/component layout/ident diagram.
Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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Post Options Post Options   Quote stiuskr Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 17:44
I've only seen one service manual, for the a700, and that information is in there. But you have to know what you're looking at.
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Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 17:55
Originally posted by MedicineMan999 MedicineMan999 wrote:

Blown fuse on the main board sounds like my luck...and to hear it is a known defect on a-mount makes me wonder when I pick the a99ii now :(

I wouldn't worry. Statistically, failures are very rare. But if you want to worry, you can add to the list SteadyShot failure, shutter failure, and some other possible issues. The only way to guarantee no failures is to never buy anything.
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mambo View Drop Down
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Post Options Post Options   Quote mambo Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2017 at 18:13
My A77ii had the same problem last April. Fortunately, I had a month of warranty left, and Sony replaced the mainboard.


Good luck

Charles

Edited by mambo - 07 February 2017 at 18:16
Charles M

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