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06-12-2012, 07:12 PM   #16
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QuoteOriginally posted by jogiba Quote
My Pentax 67 90mm F2.8 LS lens has 1/500 sec sync.
See, they could do it if they REALLY wanted to!


06-12-2012, 09:47 PM   #17
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QuoteOriginally posted by BigDave Quote
See, they could do it if they REALLY wanted to!

That particular 90mm lens has a leaf shutter built into it. That is what makes it possible on the 67. The native sync speed on the 67 is pretty damn slow at 1/30. In addition to the 90mm LS, there is a 165mm/4 LS that syncs to 1/500 due to its incorporated leaf shutter. There is also a 90/2.8 and 165/2.8 that don't have a leaf shutter.

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