Forum: Pentax DSLR Discussion
02-13-2011, 06:17 PM
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Yeah. The wireless communication protocol is optical. You'll need two AF360FGZs.
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Forum: Pentax DSLR Discussion
04-01-2010, 09:07 PM
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See: Pentax P-TTL Flash Comparison: Wireless
In addition to the two you've listed, the Sigma EF-530 DG Super can as well (although I found it less reliable).
These are all in the same price range as the Nikon SB-600 AF Speedlight.
Unfortunately, there's not a cheaper solution for wireless TTL. It's worth noting, though, that wireless control from the on-board flash is a feature Pentax offers even on the entry-level models like the K-x or K-m.
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