Forum: Pentax K-5 & K-5 II
08-28-2012, 08:44 AM
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1/180 is the listed top sync speed for the K-5. With Tv or Av mode that should be your limit. There is a high speed sync setting that lets you use higher flash speeds, but doesn't send one flash burst but a series of micro-flashes. TAv is basically a manual mode with adjustable ISO. That flash will fire but not sync well with TTL. I also have overexposure problems with my K-5. I adjust the flash exposure compensation.
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