Vivitar 728AF

Check availablity: eBay.

This OTF TTL dedicated flash is for all intents and purposes a generic flash unit when used on any DSLR. Its legacy OTF TTL-mode is incompatible with the type of TTL on a digital camera, but it can be used as a manual flash at full power.

With a DSLR, there is no communication between flash and body, so do not expect the tracking zoom function to work.

Specifications

Generic flash.
Head: 28-50mm coverage, power zoom (tracks lens).
Swivel & tilt: no swivel, 0° to +90° tilt.
Exposure mode: Manual.
No manual settings.
No built-in wireless modes.
Trigger voltage: 5.8 volt.
Batteries: 4xAA.
Flash duration: 1/1000 sec. @ 1/1 (full output).
Field upgradable: No.
Dimensions: 70 x 148 x 45 mm, 235 g.

Zoom head setting:f=35mmf=50mmf=max
Guidenumber (ISO 100, meter):232835
GNs taken from manufacturer's specifications.

Price: USD 40 (new, w/o tax).
Discontinued: Yes.

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

Literature

Documentation:

Brand profile

Key info

Established: 1938
HQ: Edison, NJ, USA
Web: US, man

Vivitar was the leading brand name of a manufacturer, distributor and marketer of photographic equipment founded in 1938 that operated out of Oxnard, California, USA. The Vivitar brand was introduced in the 1960ies, and became in the 1970ies associated with a series of high quality lenses labelled Vivitar Series 1, and a very successful line of auto thyristor flash units. After the death of the original owners, the company went into decline, and eventually bankruptcy. The Vivitar brand was acquired in 2008 by Sakar. Sakar has revived the Vivitar brand. However, the quality of the current crop of Vivitar-branded products is not very good and not on par with Vivitar's legacy.

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