None, but it is a way to differentiate the *ist-D from the Ds/Ds2.
Jack Davis wrote:
In the TTL/P-TTL meter/flash conversation, what roll does lens "compatibility" play? Jack __________________________________________________ Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
--When you're worried or in doubt, Run in circles, (scream and shout).
