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12-04-2011, 07:19 AM   #1
Waygook
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Pentax f 1.7x tc and external flash-no hss?

I recently purchased a used Pentax f 1.7x af teleconverter. Although I've been mostly pleased with the image quality and focusing ability, I haven't been able to get my K7 to play nice with the Metz 50 af-1 in high speed sync mode. I've tried it with different lenses (DA* 300, FA 100 2.8 macro, DA 18-55 wr) with the same result: shutter speed maxes out at 1/180. In addition, wireless flash doesn't appear as an option in the flash menu with the tc mounted.
Are hss and wireless flash just not an option with this tc, or is there a workaround via shorting out the pins? I've noticed a lot of people on the forums are using this tc with the DA* 300 for birding so I'm hoping someone can shed light on this for me.

Thanks.

12-08-2011, 03:24 PM   #2
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It might be because the TC transmits aperture info but not lens info, but I'm not 100% sure...

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12-10-2011, 12:26 AM   #3
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I don't know about the Metz 50AF-1.

Just tested K7 + Pentax 540 + Pentax 1.7X AFA + any of (Pentax DA* 16-50mm, Pentax DA* 50-135mm, Sigma EX Macro 50mm, Pentax F 35-70mm). Wireless and high speed sync works just fine.
12-11-2011, 01:31 AM   #4
Waygook
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thanks

Thanks SOldBear.
Could be the Metz is the weak link then. I'll have to look into that further and possibly consider a selling it for the 540.

12-11-2011, 01:48 PM   #5
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You might look for a Metz update for your flash - it might be a problem they corrected.
12-23-2011, 10:19 PM   #6
Waygook
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maybe defective teleconverter?

I had to put this on hold for a while but I recently tested the tc with a Pentax 540 flash unit and got the same results. I also was unable to update the Metz 50 af-1 firmware (couldn't get the updater to run) rendering the Metz not-so "future proof". I'm starting to think either I'm doing something wrong or I got a defective teleconverter.
Perhaps CanadianRockies could be so kind as to run me through the procedure of setting high-speed synch with the 540 and 1.7x tc, just in case of operator error? Much appreciated if possible.
Thanks!
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