Sony External Flash

The Sony HVL-F28RM Flashgun is a hotshoe and wireless remote external flash, in a compact and portable unit featuring an impressive guide number of 28m at ISO 100 and 50mm. Built-in 2.4 GHz radio transceiver to allow photographers to quickly create portable lighting setups with ...The Sony HVL-F28RM Flashgun is a hotshoe and wireless remote external flash, in a compact and portable unit featuring an impressive guide number of 28m at ISO 100 and 50mm. Built-in 2.4 GHz radio transceiver to allow photographers to quickly create portable lighting setups with complete support for P-TTL / ADI metering.

This flash can be set as a commander or a remote that fully supports Sony's existing radio commanders and receivers, including ratio control, the ability to work with up to 15 flashes in five groups. The flash also works within Sony's wireless flash system, where it can operate as either a commander or remote unit. The HVL-F28RM has a compact design, so is well suited to the a7-series mirrorless camera system bodies.

It also features a dust and moisture resistant construction along with a durable metal foot. The HVL-F28RM is able to operate as either a radio commander or remote as part of Sony's radio wireless system, including the FA-WRC1M Wireless Radio Commander and FA-WRR1 Wireless Radio Receivers. This system has a wireless operating range of up to 35m and does not require direct line-of-sight.

Supports up to 15 flashes in five groups on one of 14 channels, and supports Sony's P-TTL / ADI metering system, including high-speed sync and ratio control. Advance Distance Integration (ADI) flash metering works with cameras and lenses with distance encoders to more accurately balance flash output with ambient light and subject reflectivity by taking camera-to-subject distance into account. Improved resistance to overheating for longer and more rapid shooting sessions, and a durable metal shoe has been added for improved mounting stability of the flashgun.