What's the reason for this

[itsbudda]

This control on my early 90s starblitz has me baffled. Does anybody know what it does?

 

[tirediron]

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[Derrel]

Olympus, Nikon/Ricoh, Minolta, Canon/Pentax flash control protocols on a multi-system flash made by a 3rd party. The switch activates/deactivates the appropriate contacts for the different cameras that it could be used with.

M could also be Manual...hard to know without seeing the entire back of the flash, but I suspect it is Minolta, and not manual.

I am not sure what St is for....perhaps Stroboscopic, with center-contact-only is my best guess. Repeating, or stroboscopic flash was kind of a "thing" back then.

 

[malkav41]

The N/R = Nikon/Ricoh cameras
C/P = Canon/Pentax
O = Olympus
M = Minolta
The St setting, I'm not sure about.

Hope this helps.