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mikeriach
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Post subject: A700 problem  Posted: Sat Feb 07, 2009 10:31 pm |
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| Grand Caliph |
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Joined: Sat Feb 02, 2008 11:29 am
Posts: 344
Location: Aberdeen
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Today wandering on the beach (snow, sand and water to choose from) this happened. One minute I've got "normal" shots like this:  ... then 5 frames like this.  At the same time it didn't want to focus with the Sony 18-250. I did the Microsoft solution first, off and on but to no avail. Then I released the lens and rotated to the disconnect point without actally dismounting then fitted again. Switch on and back to normal. Any ideas? Mike
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Some Sony stuff (and a couple of Sigma bits)
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harveyzone
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Post subject: Re: A700 problem Posted: Sat Feb 07, 2009 11:16 pm |
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| Oligarch |
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Joined: Sun May 20, 2007 11:54 am
Posts: 173
Location: Worcestershire, England
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mikeriach wrote: Any ideas? I cannot answer your question directly, but something similar was discussed here.
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Tom
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Dusty
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Post subject: Re: A700 problem Posted: Sun Feb 08, 2009 1:46 am |
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| Emperor of a Minor Galaxy |
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Joined: Thu Dec 18, 2008 5:04 pm
Posts: 2017
Location: St. Louis, Missouri, USA
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Mike, Check to be sure all your contacts are clean. I don't know why that would cause a color shift, but since a twist of the lens solved it, that's a good place to start.
Dusty
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A couple of a350's, an a700, even more lenses.
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Javelin
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Post subject: Re: A700 problem Posted: Sun Feb 08, 2009 2:10 am |
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| Emperor of a Minor Galaxy |
Joined: Wed Jul 16, 2008 4:51 pm
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David Kilpatrick
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Post subject: Re: A700 problem Posted: Sun Feb 08, 2009 2:22 am |
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Joined: Sat May 19, 2007 1:14 pm
Posts: 6035
Location: Kelso, Scotland
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Yes, had one like that - only one. It seems to be a fault which can occur intermittently, but could just take over entirely. The raw file is affected, so it is not actually a white balance issue - WB does not change raw data, except for adjusting exposure slightly. This fault produces purple raw files as well. That means it is a fault somewhere between the sensor and the raw file being written, most likely very early in the chain.
If it happens more than VERY occasionally I think the camera should be looked at. We have not bothered - it has happened only on one single frame.
David
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Javelin
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Post subject: Re: A700 problem Posted: Sun Feb 08, 2009 2:38 am |
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| Emperor of a Minor Galaxy |
Joined: Wed Jul 16, 2008 4:51 pm
Posts: 1901
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is it possible this is a write error to the card?. hows are these raw dumps structured? is all the colour information at the beginning or end of the readout from the sensor in the file? seems more of the file should be damaged if that were the case but on the last few CF card failures that have been posted about this was one of the things about the files that was common aside from the photograph being sort of assembled improperly they all had a colour cast
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PhotoclubAlpha
Shoot babies to fight infant eye cancer.
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Dr. Harout
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Post subject: Re: A700 problem Posted: Sun Feb 08, 2009 6:05 pm |
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| Subsuming Vortex of Brilliance |
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Joined: Wed May 30, 2007 7:38 pm
Posts: 5429
Location: Yerevan, Armenia
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Just for the record, was it a CF or MS you were using?
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A99 + Sony, Zeiss, Minolta, Rokinon and M42 lenses
Flickr
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mikeriach
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Post subject: Re: A700 problem Posted: Sun Feb 08, 2009 6:16 pm |
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| Grand Caliph |
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Joined: Sat Feb 02, 2008 11:29 am
Posts: 344
Location: Aberdeen
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Thanks for all the comments guys.
No recurrence yet so will leave for a while to see.
Dr Harout, used CF (Extreme III 4GB) but have played on the MS this morning as well (Sony 8GB). No recurrence with either.
Mike
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Some Sony stuff (and a couple of Sigma bits)
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