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05-31-2012, 03:16 PM   #1
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Anyone Using the Bower SFD926p, Vivitar DF383, or Polaroid PL-144AZ?

Anyone using any of these flashes on your K-r? Thinking of getting one for my K-r and they all look the same, but want to know your experiences. Thanks!

06-05-2012, 10:34 AM   #2
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I have a Bower SFD926p that I bought a year and a half ago. It works great with the KX and K10D, but when I tried it with my KR, I was surprised to find that it didn't work correctly at all. In P-TTL mode, it will give the illusion of functioning with rear curtain sync, but it is always at 100% power. Trying first-curtain sync results in the flash constantly firing, like a disco strobe! Not good! In manual mode, you can control the output power, but the flash fired inconsistently, and when the power button is cycled from 1/16 (lowest power) back to auto, the flash again goes into beserk disco mode. I can't recommend the SFD926p with the KR. I'm glad you asked this question, I hadn't tried it with my KR, thinking a Pentax compatible flash is all Pentax compatible. Maybe the newer ones will work OK. Good luck!


By the way, I also have a Pentax AF360-FGZ that works perfectly with this K-R, so the camera is not the problem.

Last edited by grog85361; 06-05-2012 at 10:40 AM.
06-05-2012, 02:53 PM   #3
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Thanks for the reply. The Vivitar DF383 is something I'm looking at, and I may give it a try to see if they've updated it to work with the K-r.
06-05-2012, 04:28 PM   #4
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Check here:
The Definitive Guide - Pentax P-TTL Flash Comparison

If the flash isn't listed, it won't support the K-r's P-TTL flash automation. At best you can use it as a manual flash or use auto-thristor flash if the flash supports that.

Also, some older non-Pentax flashes have a trigger voltage high enough to fry the K-r's internal circuitry.

06-05-2012, 08:28 PM   #5
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I checked that when I was first looking at the flashes. It's one of the "Tumax" type, and there's a note indicating that newer ones might support K-r but hard to tell.

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