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02-28-2007, 04:24 AM   #1
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K100D + Sigma EF500DG problems.

hey guys , i dont know if the problem is in the flash or in the camera
or in the connection between them.

Anyway , most of the time the flash works just fine
but from time to time i have some problems with him.

1) the AF red lamp , stop working , the camera trying to AF without it
(in the darh she just cant) . i look in the viewfinder , and i dont see
the "lightning" , means the camera dosent know she got the flash.
the wierd thing is , the flash IS work.. only the AF red lamp is not.
i can fix this problem only if i disconnect the flash from the camera
and connect it back... (if i turn camera+flash off & on its still not working)

Any ideas?

2) Alot of times i get underexposed , dark pictures. i can take 1 pic' it will be fine
and 1 min' after that , same pic' same setup , and she will be darker..
i think the light mettring of the camera dosent work well
or anything else?

3) white balance : i take photos' mainly indoors , in dark places like
dancing clubs , most of the time i use manual WB , but sometimes i get
blue/red pictures , i try all the things in the WB , nothing help
need to manual it again.. and again .. and again.

4) focus in dark places , camera get hard time to focus in dark places..
its not really dark.. and the flash AF red lamp dosent help much :/
Any setup can help the camera focus better?
(i'm going to buy the Sigma 24-70mm 2.8 EX DG Macro)
does the lens will help the camera focusing?
right now i'm using the kit 18-55 f3.5 - 5.6

Thanks for all and sorry for the bad english.
Sagi.

02-28-2007, 05:12 AM   #2
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Forgive me a stupid question, but you are using the Pentax-specific model of the flash, aren't you?

If you're using the flash a lot, for white balance why not try setting it to "flash"? That may help. I suspect that in a place like a dance club the lighting may be changing a lot and that makes manual settings an exercise in frustration.
02-28-2007, 05:20 AM   #3
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Hi Sagi
I know that the Sigma EF500DG and DG super had to be rechipped for the K100D. Has that been done with your unit? I own a Pentax *istDS so I don't have to worry about that but many people have had to send their flash units back to Sigma to be upgraded for the K100D and K10D. I'm not sure but I think the process is free, I'd contact your local sigma dealer. Also I'm sure others here own the unit, and the K100D, hopefully one of them will chip in some advice.

NaCl(hope that helps)H2O
02-28-2007, 07:58 AM   #4
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HAha I just use a Sunpak manual flash. The ones with the single contact on the bottom.

Just set the camera on ISo200 and say 1/100th and f5.6 or f8. Fire. Check the photo. If its too dark, try opening the lens up a little more.

02-28-2007, 08:10 AM   #5
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QuoteOriginally posted by FotoPete Quote
HAha I just use a Sunpak manual flash. The ones with the single contact on the bottom.

Just set the camera on ISo200 and say 1/100th and f5.6 or f8. Fire. Check the photo. If its too dark, try opening the lens up a little more.
OMG, thats how everybody used to work before they were spoiled with auto focus, auto exposure, auto flash, auto ISO, or was than ASA? Am I getting old and cynical? Never.....
02-28-2007, 08:20 AM   #6
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HAha, not you are not alone on that thought. :P

I shoot manual too. Yea I'm still a bit fuzzy with the flash procedures so its mainly guess and check. The operating distance chart helps but I still mess up.

When my friend bought a Olympus Fl-36, I was pissed haha. He doesn't even have to think. The flash communicates with the camera and does everything. (-_-) Then he ends up strobing people to no end.

Then again I got my Sunpak for $17. 300 degree rotatable + 0-90 tilt. Part of me grew up on manual old school stuff so even though my SLRs digital, I still choose manual old lenses. Then there is the not having much money so I try to make the most of it.
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