Sony HVL-F28RMA External Flash with Wireless Radio Control

Product Type: External Flash with Wireless Radio Control Model: HVL-F28RMA Shoe Type: Sony Multi Interface Shoe Flash Output - Guide Number: GN28 - Rated at 50mm, ISO 100 - Flash coverage: 50mm - Built-in wide panel covers 24mm angle of view - Colour temperature: Approx. 5,500K Flash Modes - TTL - Manual - Multi Flash - Pre-flash metering with P-TTL / ADI - Flash compensation supported with compatible cameras Manual Power Control - 25 power levels - 1/1 to 1/256 - Adjustable in 1/3-step increments High-Speed Sync - HSS (High-Speed Sync): Yes - Sony also specifies synchronisation up to 1/80,000 sec when used with the compatible α9 III under specified conditions. - In HSS mode, Sony HK specifies 1/400–1/8000 sec for full-frame and 1/500–1/8000 sec for APS-C, subject to compatibility. Continuous Flash Performance - Up to 40 flashes at 10 flashes/sec - Sony test condition: normal flash, 1/32 power, 50mm, Ni-MH batteries. Recycle Time - Alkaline: Approx. 0.1–6.4 sec - Ni-MH: Approx. 0.1–4.1 sec Number of Flashes - Alkaline: More than 110 flashes - Ni-MH: More than 130 flashes - Figures refer to maximum-output flashes under Sony test conditions. Bounce Flash - Bounce Flash: Yes - Upward bounce up to 120° - Positions: 0° / 20° / 40° / 60° / 80° / 120° - Built-in bounce sheet included Radio Wireless Control - 2.4GHz radio wireless system - 14 channels — Auto / Manual - Approx. 35m / 114.8ft communication distance - Supports both Commander and Receiver operation - Controls up to 15 flash units - Up to 5 groups in Group Flash mode - Up to 3 groups in TTL / Manual modes Power - 2 × AA alkaline batteries, or - 2 × AA Ni-MH rechargeable batteries Durability - Dust- and moisture-resistant design - Metal Multi Interface Shoe foot with rugged side frame - Optimised flash-control algorithm helps prevent overheating - Sony notes that dust/moisture resistance is not guaranteed to be 100%. Dimensions & Weight - Dimensions: Approx. 65.1 × 83.5 × 94.4mm - Weight: Approx. 226g / 8.0oz - Weight excludes batteries. What's in the Box - Connector Protect Cap - Mini-Stand - Carrying Pouch - Dust- and Moisture-Resistant Cover