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a580 problem

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dca1213 View Drop Down
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Post Options Post Options   Quote dca1213 Quote  Post ReplyReply Direct Link To This Post Topic: a580 problem
    Posted: 06 March 2015 at 22:56
I have two a580's, love the images they produce. As some of you know I purchased a used a850 back in November which resulted in my a580's seeing much less action.

Well with spring rumored to be just around the corner I decided to get the a580's out and ready for birding with my new/old Sigma 400. What I have discovered is that what had been an intermittent problem with both of my a580's has now developed into a serious problem with one and still intermittent with the other.

When I power on the camera just keeps cycling off and on by itself almost endlessly on one and only for a minute or so on the other. One I bought new the other I purchased used and in fine working order.

Has anyone else experienced this behavior?

I apologize in advance for the video, I am not a video guy and trying to steady the camera with a 90mm macro and manual focus is not my area of expertise. And the exhaust fan over the stove was not helpful. But I was surprised that I even found the video button!

But as you can see in the video it just keeps turning itself off and on, I am not touching it.

video
Dennis
 



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sybersitizen View Drop Down
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Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2015 at 23:52
Is it really power cycling or just a display problem?

If power cycling, have you swapped batteries with your A850 to make sure it's not a battery problem?

Edited by sybersitizen - 07 March 2015 at 00:23
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dca1213 View Drop Down
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Post Options Post Options   Quote dca1213 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:22
Originally posted by sybersitizen sybersitizen wrote:

Have you swapped batteries with your A850 to make sure it's not a battery problem?


Hi Ray, yeah I have tried three different batteries, same result. In the video I have a Minolta 35-105 on the camera and you can hear it re-racking the focus to infinity (well maybe if you listen closely since I had the kitchen exhaust fan on) a clicking sound.

I am wondering if maybe it's dirty contacts on the switch, not sure it's worth fixing but the fact that one is almost useless and the other is starting to do the same thing has me thinking it's a design flaw. But I have not read anything about this in the past.
Dennis
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Post Options Post Options   Quote robberly12 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:28
Does it happen if you set "Auto off w/ VF" to "OFF"?

It could be your eyepiece sensors are dirty or malfunctioning.

Ron

Sony A330, A580(2), A77/77ii, 35 F1.8, 18-135, 70-400G, 500 F8 Reflex, Sigma 18-250, 105 & 180 Macros, Tamrons include: 60 Macro, 10-24, 28-75 F2.8, 70-300 USD, 70-200 F2.8, 150-600
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dca1213 View Drop Down
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Post Options Post Options   Quote dca1213 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:29
Originally posted by sybersitizen sybersitizen wrote:

Is it really power cycling or just a display problem?



It is power cycling, when the display goes blank the read/write light flashes and you can not take a photo.
Dennis
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dca1213 View Drop Down
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Post Options Post Options   Quote dca1213 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:30
Originally posted by robberly12 robberly12 wrote:

Does it happen if you set "Auto off w/ VF" to "OFF"?

It could be your eyepiece sensors are dirty or malfunctioning.

Ron



It's an optical view finder so I don't believe that has anything to do with it but I appreciate your response.
Dennis
 



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al View Drop Down
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Post Options Post Options   Quote al Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:31
Do you have a battery grip installed?
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Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:33
Originally posted by dca1213 dca1213 wrote:

It is power cycling, when the display goes blank the read/write light flashes and you can not take a photo.

Okay then... I got nothin' better than your intermittent contact theory, either at the battery terminal or at the switch.
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Bob J View Drop Down
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Post Options Post Options   Quote Bob J Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:34
Does it do the same thing if waking up from sleep (ie when not using the power switch)? If the camera was on and you took the battery out and then replaced it, would it go through the same cycle?

I'm wondering if it is a problem with the switch contacts - is it possible that the conditions they have been stored in could have led to some corrosion/oxidation of the contacts?
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dca1213 View Drop Down
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Post Options Post Options   Quote dca1213 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:36
Originally posted by al al wrote:

Do you have a battery grip installed?


Well on the one that is giving me constant problems, yes it has a grip, on the other that has intermittent problems no.
Dennis
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Post Options Post Options   Quote dca1213 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 00:40
Originally posted by Bob J Bob J wrote:

Does it do the same thing if waking up from sleep (ie when not using the power switch)? If the camera was on and you took the battery out and then replaced it, would it go through the same cycle?

I'm wondering if it is a problem with the switch contacts - is it possible that the conditions they have been stored in could have led to some corrosion/oxidation of the contacts?


Bob, I will need to look into that. I have had the camera in a drawer pretty much since I got my 850 in November. I had this problem on and off in the past and it cleared up after a few minutes but now it is just constant. I will try doing what you describe and see what happens. Thanks so much for your suggestion.
Dennis
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Post Options Post Options   Quote robberly12 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 01:07
I realize it's an optical viewfinder. (I have an A580). Your video showed the LCD flashing on and off, which could result from a dirty eyepiece sensor.


Originally posted by dca1213 dca1213 wrote:

Originally posted by robberly12 robberly12 wrote:

Does it happen if you set "Auto off w/ VF" to "OFF"?

It could be your eyepiece sensors are dirty or malfunctioning.

Ron



It's an optical view finder so I don't believe that has anything to do with it but I appreciate your response.
Sony A330, A580(2), A77/77ii, 35 F1.8, 18-135, 70-400G, 500 F8 Reflex, Sigma 18-250, 105 & 180 Macros, Tamrons include: 60 Macro, 10-24, 28-75 F2.8, 70-300 USD, 70-200 F2.8, 150-600
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dca1213 View Drop Down
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Post Options Post Options   Quote dca1213 Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 01:22
[QUOTE=robberly12] I realize it's an optical viewfinder. (I have an A580). Your video showed the LCD flashing on and off, which could result from a dirty eyepiece sensor.


Thanks for your reply. I have disabled the eyepiece sensor since I am using the eyepiece magnifier which effectively covers that.
Dennis
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Post Options Post Options   Quote rastapartaman Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2015 at 01:44
Corrosion on the battery contacts might be the problem.
Tray to clean it with electric contact cleanner and clean also the control wheel and the shutter button.   
Don't think, Just click it!!

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