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noises from the SB-28 when zooming


Framingham, US
596 posts

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danamc Gold Member Donor Ribbon awarded for his generous support to the Fundraising Campaign 2014 Charter Member
Tue 29-Jan-02 11:15 PM

A question for you SB-28 techno-wizards out there:

I've recently upgraded to the SB-28 to go with my F100 and 28-70 AFS. I'm finding that as I change focal lengths on the lens while using the TTL Matrix mode on the flash, the SB-28 makes buzzing sounds as the readout on the display changes from 70 mm to 50mm to 35mm to 28mm.

Obviously the lens is communicating with the flash unit. But what exactly is the SB-28 doing to compensate for the change in focal lengths? Are there moving parts within the flash unit?

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