Overview The Sony HVL-F28RM is a compact wireless external flash designed to provide reliable and versatile lighting for photographers on the go. With a guide number of 92 feet at ISO 100 and 50 mm, it delivers sufficient output for portraits, events, and outdoor fill lighting while maintaining a lightweight and portable form factor. Its built-in 2.4 GHz radio control allows seamless integration into Sony’s wireless flash system, enabling coordination of up to fifteen flashes across five groups for complex lighting setups. Key features Flash head tilts from 0 to 120 degrees, allowing you to bounce light off ceilings or walls to soften shadows or direct light for more contrast. Built-in 2.4 GHz radio transceiver functions as either a commander or remote unit, simplifying multi-flash control without cables. Supports up to 15 flashes arranged in 5 independent groups, making it easy to create balanced and creative lighting arrangements. Durable design resists dust and moisture, ensuring dependable performance in challenging outdoor conditions like beach weddings or rainy shoots. Powered by two AA batteries, offering quick recycle times from 0.1 seconds at low power to 6.4 seconds at full power to keep up with fast-paced shooting. Full compatibility with Sony’s P-TTL and ADI metering systems, including high-speed sync and ratio control for precise exposure and multi-flash balancing. Micro-USB port enables straightforward firmware updates to maintain compatibility with new camera models and system enhancements. Key specs Guide number: 92 feet at ISO 100, 50 mm Flash head tilt range: 0 to 120 degrees Wireless control: Built-in 2.4 GHz radio transceiver Maximum flashes controlled: 15 flashes in 5 groups Power source: Two AA batteries Recycle time: 0.1 seconds (low power) to 6.4 seconds (full power) Metering support: Sony P-TTL and ADI High-speed sync: Supported Connectivity: Micro-USB port for firmware updates Environmental resistance: Dust and moisture resistant housing Connectivity and compatibility The flash integrates smoothly with Sony’s wireless flash system through its 2.4 GHz radio transceiver, allowing it to act as a commander or remote unit. This flexibility supports complex lighting setups without the need for cables, making it suitable for both studio and location shoots. The micro-USB port provides a convenient way to update firmware, ensuring ongoing compatibility with the latest Sony camera bodies and system features. Performance and reliability Designed to perform reliably in various environments, the HVL-F28RM’s dust and moisture resistant housing protects it during outdoor shoots in less-than-ideal weather. Its fast recycle times help photographers capture fast-moving subjects without missing critical moments. The flash’s support for high-speed sync and ratio control allows for creative lighting effects and precise exposure control, whether shooting in bright daylight or low-light conditions. Ideal uses and environments This flash is well suited to photographers who need a portable yet powerful lighting solution for portraits, events, travel, and outdoor shoots. Its wireless capabilities and flexible head tilt make it a strong choice for wedding photographers, vloggers, and creative professionals who require quick light shaping without bulky modifiers. The durable design also makes it a dependable option for shoots in challenging weather or dusty locations.