Cobra auto 210 FLASH GUN BUILT IN SYNC IDEAL FOR Olympus OM10 20 30 4Ti etc

Prinz Jupiter 677TCB Flashgun for Olympus OM10 20 30 4ti etc Tested Working

Vintage Photax 131 solidstate flash Unit Olympus OM10 20 30 4Ti etc WORKING

National PE-201C Flash- For Olympus Trip, OM10 20 30 4ti etc WORKING

Sunpak Auto 33 Flash Unit-Compatible With Olympus OM 10/20/30 WORKING

Sunpak Auto Zoom 3000 Flashgun-Compatible With Olympus OM 10/20/30 Range

Jessop 200AB Electronic Flash For Olympus OM10 20 30 4ti Trip etc WORKING

Toshiba 227 Electronic Flash for Olympus OM10 20 30 4Ti etc WORKING