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A700 front control wheel acting odd..
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madcat207 View Drop Down
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Posts: 1605 		Post Options Post Options   Quote madcat207 Quote  Post ReplyReply Direct Link To This Post Topic: A700 front control wheel acting odd..
    Posted: 02 April 2009 at 16:25
Recently, I have noticed that my front control wheel has been acting strange; most specifically, this morning when adjusting ISO, one right click of the front wheel took the ISO straight from 200 to 6400.   I am also fairly sure that I have seen my aperture/shutter speed jump, but I know it has not been happening until recently.

May be a stupid question, but can I safely assume this will get worse? And if anyone has had this problem (That got worse), how much was it to fix? My a700 is more than a year old , and is one of the first 600 cameras made (known by serial #), so it is "old" at this point.

Any advice is great.. thanks!
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nigelbrooks View Drop Down
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Posts: 5678 		Post Options Post Options   Quote nigelbrooks Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 16:31
Very odd.

I would, before you pack it up for repair, try a full reset to factory settings- it could be that something has got corrupted.

As to repair costs, tr a PM to Dyxum member msoares. Mark is a Senior Customer Service rep. at Precision Camera and should be able to advise you.
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madcat207 View Drop Down
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Posts: 1605 		Post Options Post Options   Quote madcat207 Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 16:45
It really is odd, and also not constant. After the ISO jump, I had no problem fixing it with the same wheel immediately after.

I will try a reset.. maybe my camera has been around Windows too much.

So for Precision... are they really the best way to go? I swear I remember reading lots of complaints, but I may be mistaken. Sony Lardeo, while slightly slow, has treated me well, but i don't know if they will handle out of warranty. I guess I will consider all options..
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sambo View Drop Down
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Posts: 417 		Post Options Post Options   Quote sambo Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 16:56
I have the same problem with my A100 control wheel. I bought it "Like New" (it was a demo). I used the control wheel to adjust apreture and shutter speeds in the repective modes. When I bought the camera, it would jump every now and then. After about a year, it was doing it so bad, it was driving me crazy. I have the A700 now (>1 year) and no problems. I still use the 100 as a backup.
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revdocjim View Drop Down
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Posts: 4887 		Post Options Post Options   Quote revdocjim Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 17:07
This is a well known and documented problem.

I bought my A700 the day it was released, and now after a year and a half it tends to jump all over the place. Whether it is ISO, shutter speed, F/stop, EV comp, what ever I'm adjusting, it tends to jump around. Also, when viewing photos on the card it will do the same.

Recently there was a thread on dyxum about this problem and some instructions for cleaning the contact points on the wheels. I didn't try it but probably will before too long since the condition is gradually getting worse.
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madtownkeith View Drop Down
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Posts: 414 		Post Options Post Options   Quote madtownkeith Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 17:25
I've also had this problem, and considered sending it in for repair (it sounds like in most cases Sony will repair at no cost since this is a known issue), or using the contact cleaner spray that some have reported working on dpreview threads.

Ultimately, I got frustrated with it one day and rolled the control dial very quickly and firmly in both directions. That actually seems to have fixed the problem with mine. When you roll the dial, you can feel that it will "give" just a little when you push it down. I think that, at least with mine, it was just a matter of some dirt/grime getting caught in the wheel, and my frustrated quick rolling of the wheel seems to have dislodged it.

I did this about 2 months ago, and have not had any problems since.
a700, Sony 18-250, and a constantly changing array of other lenses :)
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madcat207 View Drop Down
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Posts: 1605 		Post Options Post Options   Quote madcat207 Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 17:34
Originally posted by revdocjim

This is a well known and documented problem.

I bought my A700 the day it was released, and now after a year and a half it tends to jump all over the place. Whether it is ISO, shutter speed, F/stop, EV comp, what ever I'm adjusting, it tends to jump around. Also, when viewing photos on the card it will do the same.

Recently there was a thread on dyxum about this problem and some instructions for cleaning the contact points on the wheels. I didn't try it but probably will before too long since the condition is gradually getting worse.


Well, I guess that will teach me to search better.

Of course.. more frustrating now is that it seems some backfocus has creeped back into my camera (had already sent it to Sony for repair once for this). Ah, the smell of massive simultaneous failure in the morning....*sigh*
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tpetpe View Drop Down
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Posts: 671 		Post Options Post Options   Quote tpetpe Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 18:01
Both the wheels are doing it on mine, very annoyimng, but generally not too much of a problem, if anything else goes then it will end up in the shop, otherwise it may get a little clean some time. Rotating the wheels back and forth a couple of times has helped mine too but not for too long.

Tim
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Monaco View Drop Down
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Posts: 178 		Post Options Post Options   Quote Monaco Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 21:46
I thought I noticed my shutter speed jump up in Manual mode today and Im thinking it's coming down with this problem.I purchased my a700 secondhand on ebay and was fortunate enouph to get it from someone that babied it.Hopefully it doesn't start acting up like yours.It'll be going straight to sony if it does.
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ponisch View Drop Down
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Posts: 818 		Post Options Post Options   Quote ponisch Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 21:49
This doesnīt sound fun at all
So the majority of your A700īs started acting like this after only a year?
A700 | Tamron 90/2.8 | Min 35-70/4 | Soon Sigma 50/1.4
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douglasf13 View Drop Down
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Posts: 1370 		Post Options Post Options   Quote douglasf13 Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 22:06
As an experiment, try removing the battery for a few seconds, and then put it back in. Did that help?
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MPham View Drop Down
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Posts: 26 		Post Options Post Options   Quote MPham Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 22:10
Yep, had the same problem on my 700 after about a year. The culprit is most likely dirty contacts on the wheel switch. I just sparingly used some electronic contact cleaner spray on the wheel and it cleared up the problem... for now. :)
Thanks,

Minh
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madcat207 View Drop Down
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Posts: 1605 		Post Options Post Options   Quote madcat207 Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 22:11
Originally posted by douglasf13

   As an experiment, try removing the battery for a few seconds, and then put it back in. Did that help?


Nope, in fact, it is now worse (though, not due to the battery). I went from a random change, to half of my scrolls (especially in review moved) activates and unwanted and unstoppable cruise control. This is really annoying because it is doing it when I am trying to check critical focus, and I have to go hunting back to the right photo.

But that still isn't as annoying as the new AF wierdness that I am seeing (on my macro for example, it will spaz back and forth, or be jerky... but the lens itself is just fine (nice and smooth, it is the camera AF that is racking). I know the macro is not a great example, but I have never seen my camera do this before....

*sigh*.. I can't afford a repair, nor can I really afford a new camera...
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Patrick Ronan View Drop Down
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Posts: 51 		Post Options Post Options   Quote Patrick Ronan Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2009 at 22:16
Could you be more specific on how the AF is acting weirdly? I believe I am having the same problem, also more pronounced with the 100/2.8 macro lens. It has excessive trouble locking focus at anything over 1/4 magnification, and is quite jerky.
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