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 Post subject: HOW TO fix un-detected flash on Alphas
PostPosted: Sat Dec 13, 2008 6:26 am 
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Some Sony Alpha owners have reported loose flash problems, where the flash is on, but the camera does not detect it, causing it to fire at full power or not fire at all. How can this problem be solved quickly?

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The problem has two reasons - firstly, the metal pins on top tend to oxidize if exposed, especially in humid Malaysia. The oxidized layer is scratched away by the flash's pins, leaving small tracks where there is contact.

The second reason is that the plastic on the flash mount and the body's mount is looser to allow for quick mounting and dismounting of the flash. The slight play and wobble is fine but the problem happens because the wobble makes the pins move onto the oxidized area, off the clean tracks.

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So, you will need to clean the metal pins on top - you could use a key which you carry, in emergencies, but if you want to be gentle, you can use an ink eraser.

Yes, I am advocating the use of rubber.

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Or, in the worse case scenario, you can rub it with your fingernails! This is perfectly fine; it will not electrocute you (the circuit to be shorted is on the flash itself.)

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So now, mount the flash - it works! Wobble it about and it's still fine.

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Finally, test it by turning it sideways. Some HVL-F58AM flash owners have reported that the flash might not be detected in portrait orientation before cleaning, so test it in this position as well.

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If the wobble still bothers you, you could apply some white tape to the insides of the hotshoe so it will look like this hotshoe. That should tighten it up a lot. You must clean the oxidization regardless - if not, it will just be a tight, undetected flash.

Happy flashing!

P.S. Thanks to ament, hOcmun and shootkk for helping out with modelling the camera and/or taking photos.

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Sat Dec 13, 2008 6:32 am 
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Great post albnok! :)

May I know what lens did you use for the close-up / macro on the hot shoe?


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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Sat Dec 13, 2008 6:38 am 
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Thanks!

I reversed a Minolta 50mm F1.4 and held the aperture lever open with a folded piece of paper, in front of just the camera without lens attached.

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Sat Dec 13, 2008 8:29 am 

Joined: Fri Nov 14, 2008 3:44 pm
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Location: Kota Kinabalu, Sabah
Good info...thx bro..

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Sat Dec 13, 2008 11:11 am 
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great tips!!! thanks! thanks! hehe
sometimes it happened to me also. i think we should notify sony officially, they should fix this problem soon (tighten the hotshoe)

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Sat Dec 13, 2008 9:17 pm 
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it would also help to decrease the oxidation on the contact point by using the hot-shoe cover (bought it for RM29 but now official RP stated RM33) .In case of urgency, you could use your own t-shirt to rub a bit then everything will be fine. this is my experience so far

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Sun Dec 14, 2008 7:18 am 
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harmawan_i: The problem is not the loose hotshoe - it's the oxidization. They need to change the metal or the texture on it, so it doesn't happen so often.

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Mon Dec 15, 2008 3:46 pm 
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Joined: Wed Aug 20, 2008 3:48 pm
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it doest make the hotshoe 'rosak' right? nice info!

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Mon Dec 15, 2008 4:18 pm 
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Nice tips there, albnok! :D

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 Post subject: Re: HOW TO fix un-detected flash on Alphas
PostPosted: Mon Dec 15, 2008 6:25 pm 
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jsc_tidus: If you're afraid, use rubber. ;)

So far my nails haven't damaged it LOL.

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