Sunpak Auto 511

Check availablity: eBay.

Handle mount (hammerhead). Make sure the mounting bracket and PC sync cord is included if you buy one of these.

No tilt or swivel, but entire unit may be tilted on bracket.

Auto range is 4 stops (f/4 to f/11 @ ISO 100).

Specifications

Generic flash.
Head: Fixed 35mm coverage.
Swivel & tilt: no.
Exposure modes: Auto, Varipower.
Manual settings: 1/1 to 1/64 in 1/1 EV steps (7 steps).
No built-in wireless modes.
Features: Sync. socket, Hammerhead.
Trigger voltage: 190 volt.
Batteries: 4xAA.
Flash duration: 1/600 sec. @ 1/1 (full output).
Field upgradable: No.
Weight: 709 g.
Guide number (ISO 100, meter): 36.

Discontinued: Yes.

For a detailed explanation of the above specifications, see the guide.

Literature

Documentation:

Brand profile

Key info

Established: 1963
HQ: Saitama, Japan
Web: Global, man

Sunpak's main business is the planning, development, production and sale of aftermarket electronic flash units. The company also markets general underwater imaging equipment.

Some Sunpak flash units have an auto power save function that may put the unit to sleep after about some time of inactivity (from 5 to 15 minutes, depending on model). When using your flash as a wireless slave, the power save mode may stop the flash from responding after a while. If the manual does not tell you how to disable automatic power save, it may work to hold down the mode and select (SEL) buttons as you power it on, or to hold down the zoom button as you power it on.

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