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06-01-2008, 12:49 PM   #1
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Sigma EF 530 DG Super or Ptx 540 FGZ for K20D?

I just got my new K20D, just to discover my old trusty AF 500 FTZ flash will not do TTL auto with it. (Only manual via x sync).

Since I do not use flash that much, I was not willing to shell out a load of cash for a new AF 540FGZ, and was wondering about the Sigma EF 530 DG Super, which is supposed to have about the same specs.

Any thoughts?

Thanxs

06-01-2008, 10:01 PM   #2
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In terms of raw power, take a look at this thread from the knowledgebase here:

https://www.pentaxforums.com/forums/pentax-photography-knowledge-base/23109-c...h-options.html

There's a rudimentary discussion of features there too.

I ended up returning my Sigma EF530DG Super and getting a Metz 48 AF-1, which I like a lot. There were several oddities with the Sigma's behavior, the worst of which being that the focus-assist strobe on the K10D was setting off the Sigma flash in wireless PTTL mode. Well, that and the incomprehensibly horrible user interface. It's not a horrible flash, though lots of power for the dollar, and a much better focus-assist light than Metz has, for example. And the Metz has its own UI quirks.
06-03-2008, 06:23 AM   #3
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Thanks for the link. It is quite complete with much info on available options.

RB
06-03-2008, 06:55 AM   #4
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A rule of thumb is to always go with the flash made by the inventor of the system, because they give the most consistent results.

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