On 9 Jul 2004 at 18:58, Herb Chong wrote:

> since OTF metering can possibly change the exposure time during exposure, it
> can't be used faster than X synch speed. think about the position of the shutter
> blades if the lighting changed a lot during exposure.

Precisely, it forms a slit which passes across the focal at any shutter speed 
faster than X-sync.


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
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Pentax user since 1986, PDMLer since 1998

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