Flash and non-Pentax lenses

Started Jan 27, 2013 | Discussions thread
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RichardRE
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Flash and non-Pentax lenses
Jan 27, 2013

So on my K-5 IIs, it says for the flash:

The shutter speed is locked at 1/180 sec. when a lens other than a DA, DA L, D FA, FA J, FA, F or A lens is used.

Does this apply to all non pentax lenses like my Sigma 17-50?

Pop-up and Pentax 540?

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-Richard
Pentax K-5 IIs, Sigma 17-50 f2.8 EX DC HSM, LX3, Pentax MX w/Pentax 40-80 & Soligor 80-200 f4.5 lenses, Lightroom 4.3, CS5

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Pentax K-5 IIs
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