Re: PHOTO-3D digest 1414

[P3D Bob Howard <bobh@xxxxxxxxxxxxxxxxxxxx>]

RE: Realist sync..Greg & Bob Wier.

Greg is delighted to see the quote from Bob of the original Realist 
manual..which says in part to use 1/25th second for all! He then desides 
that means the Realist is synced for "bulbs", meaning chemical 
flashbulbs. A Camera that is only X-syched would fit the description and 
would be in sync at all shutter speeds BUT could only use flashbulbs at 
1/25 (or slower) to keep the shutter open long enough for the flashbulb 
to fire. M-sycn fired bulb 15ms or so ahead of shutter opening and would 
miss an electronic flash completely. So M-sync would never let strobe 
work. BobH


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