The Sigma EF-430 NA is a dedicated external electronic flash unit designed for Nikon SLR and DSLR cameras, offering automatic TTL (Through-The-Lens) metering and manual controls. It features a motorized zoom (28mm-80mm), a tilting head for bounce photography, and an AF auxiliary light for low-light focusing.

Key Features and Specifications:

Compatibility: Designed for Nikon film SLRs (e.g., F4, N90) and many Nikon DSLRs.

Guide Number: Approximately 142 ft / 43 m at ISO 100 and 80mm zoom.

Functionality: Supports TTL auto flash, manual flash, and bounce photography (tilts up to 125 degrees). Supports high speed shutter synchronization, frequency adjustable strobe mode,

Power: Requires 4 AA batteries (Alkaline, NiCd, or NiMH).

Display: Includes a backlit LCD panel for controlling settings.

[Function]

All functions tested and work properly.