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Old Dec 26, 2007, 2:48 PM   #1
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One year ago I bought a Sigma EF 500 DG ST flash to use with my *istDS camera.

Now I changedthe camerawith a K10D. I gave a look to the Sigma website to see if the EF 500 DG ST is still compatible with the K10D but the latter is not even mentioned.

The K100 is said to be almost 100% compatible and this suggests me that this should also apply to the K10D, but ...:??

Did anybody try this matching (hope successfully) ?

Ciao & grazie
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Old Dec 26, 2007, 5:12 PM   #2
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According to the Sigma website it is compatible with all the Pentax digital cameras up to the K100D. I suspect they just haven't upgraded that part of their site to include the K10D. I don't see where it would be any less compatible than the other Pentax DSLR's! Just my opinion!

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Old Dec 26, 2007, 5:26 PM   #3
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Have you tried it with the K10D? From reading past postsabout this there were some production runs that will work. If it doesn't work you can send it to Sigma to be rechipped. This will make it compatible. A few people here have had it done. If you search this forum using "rechip flash" you will get a few hits with good information.
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Old Dec 26, 2007, 6:03 PM   #4
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Thanks everybody,

Following your comments, I just posted a specific question to Sigma.

I'll keep you informed about the answer.
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Old Dec 26, 2007, 6:39 PM   #5
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dam59 wrote:
Quote:
One year ago I bought a Sigma EF 500 DG ST flash to use with my *istDS camera.

Now I changed¬*the camera¬*with a K10D. I gave a look to the Sigma website to see if the EF 500 DG ST is still compatible with the K10D but the latter is not even mentioned.

The K100 is said to be almost 100% compatible and this suggests me that this should also apply to the K10D, but ...:??

Did anybody try this matching (hope successfully) ?

Ciao & grazie
You have some chance that your 1 yr (could be 2 yrs firmware vintage) may have to be rechipped. Also DS is still TLL not p-TLL yet.
I know when I bought my 500ST in May , mine works for K10D. Also Crash in Australia has a K10D and 500ST as well.
You are lucky if you located near a Sigma service centre and that they should rechip that with no problem.

Daniel, Toronto
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Old Dec 26, 2007, 7:23 PM   #6
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Ciao & grazie

Yep, Daniel is correct. I have this flash, I used it on my DL, but had it re-chipped (for free) and it now works just fine on my K10D.

Crash
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Old Dec 30, 2007, 10:51 AM   #7
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Brief update:, I received I a first answer from SIGMA (USA)in which they only sent me the compatibility table already seen in the website. I replied mentioning the possible "re-chipping" and they finally confirmed that my flash is ugradeable by the Italian SIGMA representative.

Thanks to everybody and happy new year!
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Old Dec 30, 2007, 12:15 PM   #8
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If it's compatible with the K100D (P-TTL), it should, I would think, be also compatible with the K10D (P-TTL).
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Old Dec 31, 2007, 6:52 AM   #9
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Yeah but the question now is will it be compatible with the K20D and K200D


:blah::blah::blah::blah::blah::blah::blah::blah::b lah:.
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