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03-15-2012, 04:33 PM   #1
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Using Ricoh Speedlight 403P on K-r

Hi there,I have a Ricoh Speedlight 403P and would like to know if it is safe to use on my Pentax K-r?
Thanks Eekl

04-03-2012, 12:02 AM   #2
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Ricoh flash on kr

as I didn't get any advice in the forum re using Ricoh 403P flash on my Pentax kr,I had the trigger voltage checked with multimeter,was 7.7volts.
That sounded safe so I've been using it setting the flash on 200ISO auto F8,and setting Pentax kr on M with 125th sec speed, and Av on F6.3 for best exposure.
It seems to under expose at F8 aperture value,maybe film ISO and digital not exactly the same.
The built in flash is more accurate as it uses P -TTL.
Hope this is useful to others with film era flash units.
04-03-2012, 02:15 AM   #3
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Good to hear it works for you. Consider submitting your measurement here: Photo Strobe Trigger Voltages

That page is our first stop for trigger voltages of old flash models, and it would no doubt help others in future to have your model listed.
04-03-2012, 06:33 AM   #4
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Thanks for the feedback.

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