Metz 48 AF-1 - Massive over exposure
187 posts
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Posted 17/09/2013 - 19:45
I assume your are you using PTTL as opposed to setting flash manual. Try adjusting flash compensation on camera.
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Posted 17/09/2013 - 20:32
Can you post a shot as well as the shooting data - aperture, shutter speed, ISO. Also what auto exposure mode were you using (Av, Tv, Tav M etc)? This info should help us help 
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Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
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Posted 17/09/2013 - 23:52
My metz 48 always over exposes particularly in pttl mode..
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Currently on a Pentax hiatus until an FF Pentax is released
66 posts
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Posted 21/09/2013 - 08:01
Gents,
Thanks for your responses - and sorry for the delay in acknowledging them
but I've been away on business.
I cured it with the normal answer to everything these days "have you tried turning it off and on again".
A little bit of thought told me that the problem was straightforward - the camera and flash weren't communicating properly. The camera thought the flash wasn't there so exposed for the ambient light - and the flash wasn't receiving any information from the camera so it fired at full power.
It was correctly mounted (or presumably it wouldn't have fired at all).
It took a couple of tries before it sorted itself out - it had failed during an event I was photographing (fortunately the K-30's high ISO performance means that I did get some usable images without flash)and was still playing up when I got home (during which time the flash had been removed and both switched off) - hence my post here.
A subsequent check of the exif data (which I should have checked first)showed that the camera thought that the flash had not fired.
A couple of on/off cycles later it just sorted itself out.
But I'll be watching out for it to do it again.
I think I'll update the camera firmware now "Improved stability for general performance" .!
Terry
London, England
K-30, Optio Z10, Optio S5i, LS465, Nikon P7100
Thanks for your responses - and sorry for the delay in acknowledging them
but I've been away on business.
I cured it with the normal answer to everything these days "have you tried turning it off and on again".
A little bit of thought told me that the problem was straightforward - the camera and flash weren't communicating properly. The camera thought the flash wasn't there so exposed for the ambient light - and the flash wasn't receiving any information from the camera so it fired at full power.
It was correctly mounted (or presumably it wouldn't have fired at all).
It took a couple of tries before it sorted itself out - it had failed during an event I was photographing (fortunately the K-30's high ISO performance means that I did get some usable images without flash)and was still playing up when I got home (during which time the flash had been removed and both switched off) - hence my post here.
A subsequent check of the exif data (which I should have checked first)showed that the camera thought that the flash had not fired.
A couple of on/off cycles later it just sorted itself out.
But I'll be watching out for it to do it again.
I think I'll update the camera firmware now "Improved stability for general performance" .!
Terry
London, England
K-30, Optio Z10, Optio S5i, LS465, Nikon P7100
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Posted 04/10/2013 - 17:42
sounds like it could be a dirty contacts problem, if the big chunky contact in the middle is connected then the flash will fire, so it's quite possible to have a good enough connection to fire the flash but for the digital contacts to be misaligned or dirty such that the camera-flash communication doesn't work.
I've seen this with my Sigma unit before.
you don't have to be mad to post here
but it does help
I've seen this with my Sigma unit before.
you don't have to be mad to post here
but it does help
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Terry1100
Member
London, England
Has anyone experienced this, sudden massive over exposure with a Metz 48 AF-1 ?
I haven't used the camera for a few weeks and today I suffered massive over exposure with the Metz.
The camera exposes correctly with flash off and with the internal flash. There is no flash exposure compensation set.
I have reset the Metz (press and hold "mode" button for 5 seconds - display shows reset).
Still over exposes massively. Before I assume a failure of the flash, could I have missed something or made some newbie error ?
TIA
Terry
Terry
London, England
K-30, Optio Z10, Optio S5i, LS465, Nikon P7100