The SONY HVL-F45RM is a versatile and compact external flash designed to seamlessly integrate with SONY cameras featuring the Multi-Interface Shoe. Despite its small size, it boasts a powerful Guide Number of 45 and features both optical and advanced radio-controlled wireless communication, allowing for flexible on-camera and off-camera lighting setups throughout Japan.
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Contact Jasumo Now →The flash uses AA batteries for power, offers a fast recycling time of 2 point 5 seconds (with alkaline), and has a flexible bounce structure, making it an excellent all-around tool for professional and enthusiast photographers seeking high-quality, controlled lighting.
The SONY HVL-F45RM is the perfect partner for your SONY mirrorless camera system while you travel in Japan. Its robust wireless capabilities, combined with powerful output, allow you to easily create complex lighting schemes for events, portraits, and street photography, all controlled directly from your camera.
The flash provides precise light intensity control (P-TTL/ADI dimming) and a wide manual power range (1 slash 1 to 1 slash 128) in 1 slash 3 stop increments. Its zoom head automatically or manually adjusts to cover focal lengths from 24 millimeter to 105 millimeter (15 millimeter with the wide panel).
The incorporation of radio wave wireless communication is a major professional advantage, allowing reliable synchronization and control of up to 15 units across 5 groups, even when line-of-sight is blocked. The added LED light function is useful for steady illumination during video recording or as a modeling lamp to preview flash shadows.
| Characteristic | Detail |
| Max Guide Number | 45 (at 105 millimeter, ISO 100) |
| Power Control | P-TTL/ADI, Manual (1 slash 1 to 1 slash 128) |
| Recycling Time (Ni-MH) | Approx. 0 point 1 to 2 point 0 seconds |
| Radio Wireless Range | Approx. 30 meters |
| Bounce Range | Up 150°, Down 8°, Left/Right 180° |
| Power Source | 4 AA batteries |
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Radio-controlled wireless (2 point 4 GHz) is superior because it does not require a clear line of sight between the flash and the camera/trigger, and it has a much longer maximum reach (30 meters). Optical communication is shorter range (5 meters) and requires line of sight, which is less reliable when the flash is placed behind obstacles or far away.
Yes, it supports HSS (also known as auto FP flash). This allows you to use flash illumination at shutter speeds faster than your camera’s standard maximum sync speed (e.g., faster than 1/250th of a second). This is crucial for using wide apertures in bright sunlight.
Yes, the flash is compatible with both AA alkaline batteries and AA nickel-metal hydride (Ni-MH) rechargeable batteries. Using Ni-MH batteries is highly recommended as they provide a faster recycling time (down to 2 point 0 seconds) and a greater number of total flashes (approx. 270) per charge.
When the HVL-F45RM is set as a commander (on-camera), it can control up to 15 external flash units across 5 different groups using its radio-controlled wireless system.
The dust-proof and drip-proof design provides peace of mind when shooting outdoors. While it is not fully waterproof, it offers increased resistance to light rain, mist, or dusty conditions, helping to protect the internal components, which is valuable when shooting on location in changing weather.
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