Hot shoe mount connection. Manual flash with distance/ISO guide chart on rear.
Sunpak Auto124 Camera Flash With Swivel Head - Untested
Vintage Sunpak Auto14 Camera Flash and mounting arm
Sunpak SP140 Flash Ideal Olympus Trip 35 RD, RC, SP etc. refm
Sunpak SP140 Electronic Flashgun Unit for Vintage Camera
Sunpak GX24 Electronic Flash Unit with Gold Flash Tube Original Box Instructions
