Re: PHOTO-3D digest 1365

[P3D Neil Harrington <nharrington@xxxxxxxxxxxxx>]

Gregory J . Wageman writes:

>Someone will surely correct me if I'm wrong, but I don't think an unmodified
>Realist has X-sync (electronic) flash timing.  I believe it is timed for
>M and/or F flash bulbs, which have a fairly long (when compared with
>electronic flash, anyway) ramp-up time to full output.  If this is correct,
>your strobe is firing before the shutter has fully opened, so you are
>getting reduced exposure.  I've used my flash solely with the Revere, which
>has X sync at speeds of 1/50th and above (below that it's M and F sync only).

I don't think that's quite right, Greg.  I've got a Revere 33 also, and the
instruction manual gives the following table for flash synchronization:

TYPE OF LAMP                SHUTTER SPEEDS
------------                --------------
Class "M"          T, B, 1/2, 1/5, 1/10, 1/25, only
                  Marked in RED on Shutter Speed Ring

Class "F"           All Shutter Speeds Except 1/200

Strobe Lights             All Shutter Speeds
 (Class X)




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