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09-11-2009, 07:50 AM   #1
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Penta flash what works

I see a lot of Flash units on e-bay but if they are older will they work with th digital cameras (k20) as an example - PENTAX FLASH AF160SA ? or is there a criteria to look for ot reference sheet to compare flash units? Thanks Jeff....

09-11-2009, 07:54 AM   #2
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All hotshoe flashes would 'work' but few that would communicate with the modern dSLRs to calculate automatic exposure, which is what I assume you're after.

See here:
https://www.pentaxforums.com/forums/pentax-dslr-articles/43589-pentax-p-ttl-f...omparison.html
https://www.pentaxforums.com/forums/photography-articles/23109-comparing-curr...h-options.html
https://www.pentaxforums.com/forums/camera-studio-accessories/43215-pentax-p-...omparison.html
https://www.pentaxforums.com/forums/camera-studio-accessories/57174-p-ttl-vs-auto-flashes.html

Also be weary of each older flash's trigger voltage as a voltage too high (like above 30V) may overload the dSLR's electronic circuitry.
09-12-2009, 11:01 PM   #3
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Thanks, I didn't think about any electronic circuitry overload issues.
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