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03-28-2009, 01:11 AM   #31
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QuoteOriginally posted by thibs Quote
Bleh, I suppose 645D is PPTL compatible so HS sync is present.
Of course it lowers the flash power but still, it should allow more flexibility IMO
And one or more? lenses have shutter inside, so there you have fast synk with full flash.

Pentax Z1/PZ1 have 1/250 and that is almost 1/500 on APS, but only 1/90 on 645 and perhaps 1/125 on 645D. All with the same speed of curtain in the shutter.

So 645D can have 1/125 or perhaps 1/250, but 1/500 can add 1000$ or more to the camera because that is really fast and can be hard to produce.
And the new KxD have hopefully 1/500.

03-28-2009, 02:49 AM   #32
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QuoteOriginally posted by thibs Quote
Bleh, I suppose 645D is PPTL compatible so HS sync is present.
Of course it lowers the flash power but still, it should allow more flexibility IMO
But that will only work with a Pentax flash unit? Most potential 645D buyers need a fast sync with studio flashes, not flash units.

Or are you telling me I can somehow sync my studio flashes in high speed with my K20D and a PTTL cable?
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