any body else had these problems

CDSINUK

18 Nov 2012 - 11:56 AM

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my Sony Alpha A230 has developed problems in the last two days,

view finder is off target not lined up with center of image when you aim it ?
mirror lock up, getting camera error message,
cleaning mode not working
not focusing properly at 55mm
its worse when i put my Tamron 70-300mm on it
image stabilser has turned off and the menu wont allow me to turn it back on, the menue item has been de activated ?
ive done a search on line and found this , they might as well have been describing my camera

http://www.flickr.com/groups/1129625@N20/discuss/72157628294696567/

has anybody else had this problem ?

Paul Morgan (e2 Member)

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18 Nov 2012 - 10:47 PM

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Thats the cost of a throw away world.

Steppenwolf

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19 Nov 2012 - 1:37 PM

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Quote: Not Sony user, But this problem sounds like an issue with the image stabilising side of the sensor, ie: It has stuck or moved and now has jammed in one location, Hence the off centre thing along with all the other errors.

Moving the sensor around to provide image stabilising, Can and does present issues such as this, One reason Nikon & Canon have stuck to " In Lens Image Stabilising " ....!!!!



If the OP is saying that the view finder is off centre that is nothing to do with the sensor being out of position as the view finder is optical - the LCD liveview would be off centre but not the OVF. It sounds more like a problem with the flappy mirror to me. Either way it's not worth the cost of repair. Get yourself an A37 - no mirror to get stuck and all the latest IS and sensor.

BTW, the problem with putting technology such as IS in a lens is that a) people tend to keep lenses for a very long time so it's more likely to go wrong b) it gets outdated as the technology improves and lenses are expensive to replace c) you need the technology in every lens and d) you need a moving element in the lens which is bound to lead to CA.

Steppenwolf

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19 Nov 2012 - 2:02 PM

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Quote:
a) people tend to keep lenses for a very long time so it's more likely to go wrong

Why would you keep IS lenses longer?



You keep lenses longer than camera bodies, usually. I've got several lenses that are over 20 years old. They're still working perfectly, but then they've got no fancy IS or piezo-electric motors in them or they'd probably be manual focus only with ineffective IS.

IS has been improving significantly over the years as anyone who's had a few KM/Sony cameras can tell you. It's also been improving with in-lens IS and Canikon sometimes release updated Mk 2 versions I believe, although I guess it's more usual that they just update the lens without rebadging it - like car manufacturers change a vast number of parts on cars for every new model year without necessarily advertising the fact.

I'm afraid that if you have a moving element in a lens that is used to redirect the image it will cause CA.

Paul Morgan (e2 Member)

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19 Nov 2012 - 2:33 PM

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Quote: i know paul, thinking back ive been having problems with it for a while, the sad bit is it leaves me with nothing Grrrrrrrrrr and i was just starting to enjoy it

Have you invested heavily in the system with extra lenses and the like.

I`ve been using inbody IS now for about five years, and as yet I have never had a problem.

But I guess the more they pack into a body or sensor design the risk of faults developing increases.

I`m using two different camera`s one with in lens IS the G2, the other with in boby IS the OMD, the OMD`s inbody IS is clearly so much better.

As for other systems I have no idea what is best.

Sooty_1 (Critique Team)

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19 Nov 2012 - 4:05 PM

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Have you tried fetching it a fourpenny one? Can you turn the IS off, and does it make any difference?

If something is stuck and/or stopping anything from moving correctly, a sharp bump might help shift it. T90 Canons are/were renown for it. Slapping it flat down onto a protected but hard surface often helped. Plus, if its not working, you have nothing to lose.

Nick

CDSINUK

19 Nov 2012 - 4:51 PM

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i have tried blowing the sensor out with sensor cleaner, i have tried a little gentle manipulation by hand in case it was stuck but nothing, i tried banging the camera in my hand to dislodge it, the sensore is more forward at the top than the bottom, but it will not correct itself