Index
The Sony A6400 is a powerful mirrorless camera packed with advanced autofocus, impressive image quality, and 4K video capabilities, making it a favorite among content creators, vloggers, and photographers alike.
However, one of the limitations of the A6400 is its built-in flash, which may not always deliver the power or flexibility required for professional lighting situations. That’s where an external flash becomes essential.
Whether you’re shooting portraits in low light, capturing action indoors, or creating dynamic lighting setups for your creative projects, a dedicated flash can significantly enhance the overall quality of your images.
Using an external flash with the Sony A6400 opens up a world of possibilities, including more natural lighting, better exposure control, and the ability to use bounce or off-camera flash techniques.
There are several compatible flashes available for the Sony A6400, ranging from compact on-camera options like the Sony HVL-F28RM, to more powerful models such as the Sony HVL-F45RM or third-party brands like Godox and Nissin.
These flashes not only offer higher guide numbers and faster recycle times, but also features like TTL metering, wireless triggering, and high-speed sync — all of which are ideal for advanced photography.
Choosing the right flash for your Sony A6400 depends on your shooting style and needs, but one thing is clear: upgrading your lighting setup can make a huge difference in your results.
In the following sections, we’ll explore some of the best flash options for the A6400, including their features, pros and cons, and why they’re a smart investment for your camera kit.
Top Flashes for Sony A6400 – Spec Overview
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1. Sony HVL-F46RM
If you’re a Sony A6400 user looking to take your photography lighting to the next level, the Sony HVL-F46RM External Flash is an excellent choice. Built with power, flexibility, and wireless control in mind.
This flash unit is ideal for both enthusiasts and professionals who need reliable lighting in a wide range of conditions.
With a Guide Number of 46 (ISO 100, 105mm), the HVL-F46RM delivers significantly more power than the A6400’s built-in flash.
It supports TTL metering, manual control, and high-speed sync, ensuring well-balanced exposures whether you’re shooting fast-moving subjects or working in tricky lighting environments.
One of the standout features of the HVL-F46RM is its built-in 2.4GHz radio wireless system, allowing it to function as either a commander or receiver in multi-flash setups.
This gives A6400 users the ability to shoot with off-camera flash creatively and wirelessly, making it perfect for portraits, events, and studio work.
The flash head can tilt and swivel, enabling bounce flash for softer lighting. It also boasts a weather-resistant design, making it suitable for outdoor shoots in less-than-ideal conditions.
Compact, reliable, and packed with pro-level features, the Sony HVL-F46RM is one of the best flash options for the Sony A6400, delivering consistent performance and creative control in every shot.
- Model: Sony HVL-F46RM
- Guide Number: GN 46 (ISO 100, 105mm)
- Flash Modes: TTL (Through-The-Lens), Manual, High-Speed Sync (HSS)
- Power Adjustment: 1/1 to 1/256 (in 1/3-stop increments)
- Flash Head Movement: Tilts -8° to 150°, Rotates 180° left and right
- Wireless Functionality: Built-in 2.4GHz radio control (Commander/Receiver)
- Battery Type: 4x AA (Alkaline or Ni-MH)
- Recycle Time: Approx. 0.1 to 2.0 seconds
- Battery Life: Up to 320 flashes per full charge (approx.)
- Dust & Moisture Resistant: Yes, weather-sealed design
- Dimensions: Approx. 73 x 105 x 96 mm
- Weight: Approx. 308g (without batteries)
- High Power Output – GN 46 is ideal for outdoor and indoor professional use.
- Advanced Wireless System – Supports multi-flash setups with built-in radio control.
- Flexible Head Movement – Allows bounce flash and creative lighting angles.
- Fast Recycling Time – Enables quick shooting without delays.
- Reliable TTL & Manual Controls – Offers full control over light output.
- Weather-Resistant Build – Suitable for challenging environments.
- Designed for Sony Alpha Cameras – Full compatibility with models like A6400.
- Slightly Bulky for Compact Setups – Larger than some mirrorless-friendly flashes.
- Uses AA Batteries – No lithium-ion battery option for faster recharge cycles.
- No Built-in LED Light – Lacks a modeling or video light.
- Higher Price Point – More expensive than third-party alternatives with similar specs.
2. Sony HVLF60RM2
If you’re using the Sony A6400 and need a professional-grade flash for demanding photography work, the Sony HVL-F60RM2 is one of the best options available.
This high-powered external flash is designed for advanced shooters who want full control, fast performance, and seamless wireless lighting setups.
With a Guide Number of 60 (ISO 100, 200mm), it delivers strong illumination even in large spaces or under bright ambient light.
Perfectly compatible with the Sony A6400, the HVL-F60RM2 supports TTL, manual, and high-speed sync (HSS) shooting, giving you full flexibility in various lighting conditions.
Its unique Quick Shift Bounce system allows the flash head to swivel and tilt smoothly, making it easier to bounce light for softer, more flattering results.
The flash also features a built-in 2.4GHz radio commander and receiver, enabling multi-flash wireless setups for creative lighting. With improved heat resistance and fast recycling times.
The HVL-F60RM2 is ideal for event, fashion, and studio photographers who need reliability in high-pressure environments.
- Model: Sony HVL-F60RM2
- Guide Number: GN 60 (ISO 100, 200mm)
- Flash Modes: TTL, Manual, High-Speed Sync (HSS)
- Power Control: 1/1 to 1/256
- Flash Head Movement: Tilt -8° to 150°, Rotate 180° left/right
- Wireless Functionality: Built-in 2.4GHz radio (commander/receiver)
- Quick Shift Bounce: Yes (for fast bounce adjustment)
- Battery Type: 4x AA (Alkaline or Ni-MH)
- Recycle Time: Approx. 1.7 seconds
- Battery Life: Approx. 240 flashes per full charge
- Overheat Protection: Improved heat resistance and cooling design
- Weather-Sealed: Yes, dust and moisture resistant
- Weight: Approx. 439g (without batteries)
- Powerful Output (GN60) : Ideal for large venues, group shots, and bright environments.
- Quick Shift Bounce System : Allows easy bounce flash adjustment without repositioning.
- Built-in Wireless Commander & Receiver : Great for multi-flash setups and off-camera lighting.
- Reliable TTL & HSS Support : Enables balanced exposures and fast-action capture.
- Fast Recycle Time : Approx. 1.7 seconds keeps you shooting without delays.
- Improved Heat Resistance : Allows continuous shooting without overheating.
- Professional Build Quality : Durable and weather-sealed for tough conditions.
- Heavier Than Compact Flashes : May feel bulky on smaller mirrorless bodies like A6400.
- Higher Price Point : Premium flash with a cost to match.
- Uses AA Batteries : No lithium-ion option for extended battery life.
- Overkill for Casual Users : More features and power than needed for beginner or hobbyist use.
3. GODOX TT600S
The Godox TT600S is an excellent flash option for Sony A6400 users who want powerful lighting without breaking the bank.
Designed for photographers who need reliable off-camera and on-camera flash capabilities, the TT600S offers excellent performance, manual control, and compatibility with Sony’s Multi Interface Shoe.
While it does not support TTL, this flash is favored by professionals and enthusiasts for its consistent output, high-speed sync (when used with the X1T or XPro trigger), and flexible shooting options.
With a Guide Number of 60 (ISO 100, 200mm), the Godox TT600S is powerful enough for portraits, product photography, events, and more.
The flash features 2.4GHz wireless radio connectivity, making it perfect for remote lighting setups when paired with Godox wireless transmitters. Its manual control range of 1/1 to 1/128 (in 1/3-step increments) provides precise lighting control.
It also has a swivel and tilt head for bounce flash, allowing you to create soft and natural lighting.
If you’re looking for a reliable and budget-friendly flash to elevate your Sony A6400 photography, the Godox TT600S is a solid choice.
- Model: Godox TT600S
- Guide Number: GN 60 (ISO 100, 200mm)
- Flash Modes: Manual, Multi (Stroboscopic)
- Power Range: 1/1 to 1/128 (in 1/3-stop increments)
- Zoom Range: 24–200mm (auto/manual)
- Flash Head Movement: Tilt -7° to 90°, Rotate 360°
- Wireless System: 2.4GHz radio (compatible with Godox X system)
- High-Speed Sync: Yes (when used with XPro or X1T trigger)
- Recycle Time: Approx. 0.1 to 2.6 seconds
- Battery Type: 4x AA batteries
- Display: Backlit LCD
- Weight: Approx. 400g (without batteries)
- High Power Output (GN60) – Suitable for indoor, outdoor, and professional use.
- Budget-Friendly Price – Offers excellent value for money.
- Wireless Radio System – Works seamlessly with Godox X system triggers.
- High-Speed Sync Capability – Achievable with compatible triggers.
- Full Manual Control – Great for learning and mastering flash photography.
- Flexible Bounce Head – Allows creative lighting with tilt and swivel options.
- Durable Build Quality – Solid and well-built for long-term use.
- No TTL Support – Requires manual power setting, which may be less convenient for fast-paced shooting.
- No Built-in Commander Mode – Needs external trigger for wireless control.
- AA Battery Powered – May require frequent battery changes during extended shoots.
- No Weather-Sealing – Not ideal for extreme outdoor environments.
4. NEEWER Z1-S TTL Round Head Flash Speedlite
The NEEWER Z1-S TTL Round Head Flash is an advanced flash unit designed specifically for Sony cameras like the Sony A6400.
Featuring a round flash head, this speedlite delivers soft, even light with a natural fall-off that mimics studio-style lighting, making it ideal for portraits, events, and creative shoots.
The Z1-S supports TTL, manual, and high-speed sync (HSS), giving you full flexibility in various lighting conditions.
Its 76Ws power output and rechargeable lithium-ion battery allow up to 480 full-power flashes per charge, making it highly reliable for extended photo sessions.
What makes the Z1-S stand out is its built-in 2.4GHz wireless system, compatible with Neewer’s QPro transmitters for seamless off-camera flash control.
The flash head can tilt and rotate for bounce lighting, and its magnetic accessory mount allows quick changes of modifiers such as domes, gels, and diffusers.
Whether you’re a professional or an enthusiast, the NEEWER Z1-S provides impressive performance and soft, flattering light — all in a user-friendly and modern design tailored for your Sony A6400.
- Model: NEEWER Z1-S
- Flash Type: Round head TTL Speedlite
- Power Output: 76Ws
- Flash Modes: TTL, Manual, Multi, HSS
- Zoom Range: 28–105mm (auto/manual)
- Recycle Time: 1.5 seconds (full power)
- Battery: Rechargeable 2600mAh Li-ion battery
- Battery Life: Up to 480 full-power flashes
- Flash Head Movement: Tilt -7° to 120°, Rotate 330°
- Wireless Control: Built-in 2.4GHz radio system (works with Neewer QPro triggers)
- Display: Large backlit LCD screen
- Weight: Approx. 530g (with battery)
- Soft, Even Light – Round head provides studio-like light quality.
- TTL & HSS Support – Ideal for fast and dynamic shooting situations.
- High Power Output (76Ws) – Suitable for indoor and outdoor use.
- Rechargeable Li-ion Battery – Long battery life with up to 480 full-power flashes.
- Built-in 2.4GHz Wireless System – Easy off-camera triggering with Neewer QPro.
- Fast Recycling Time – 1.5 seconds ensures minimal waiting.
- Magnetic Modifier Mount – Quickly swap accessories for creative lighting.
- Slightly Heavy – Bulkier than basic speedlites, especially on compact bodies like A6400.
- No Weather Sealing – Not ideal for harsh outdoor environments.
- Neewer Wireless System Only – Limited compatibility outside Neewer ecosystem.
- Price Point Higher than Entry-Level Flashes – May be overkill for beginners.
5. Sony HVL-F28RM External Flash
The Sony HVL-F28RM is a compact and reliable external flash designed specifically for Sony mirrorless cameras, including the Sony A6400.
This powerful flash unit enhances your low-light photography with consistent output, easy operation, and wireless radio control capabilities. Ideal for enthusiasts and professionals seeking portability and reliability in one package.
- Guide Number: 28 (ISO 100, meters at 50mm)
- Flash Coverage: 50mm (Full-frame format)
- Flash Modes: TTL, Manual
- Wireless Control: Built-in 2.4 GHz radio transceiver
- Recycle Time: Approx. 0.1 to 5.1 seconds
- Power Source: Two AA batteries
- Weight: Approx. 219g (with batteries)
- Compatible Mount: Sony Multi Interface Shoe
- Compact and lightweight design, perfect for travel or on-camera use.
- Reliable radio wireless control for off-camera lighting setups.
- Quick access buttons make flash operation simple and intuitive.
- Compatible with Sony TTL, ensuring accurate automatic exposure.
- Sturdy build with dust and moisture resistance.
- Fast recycle time for continuous shooting.
- Works seamlessly with Sony A6400 and other Alpha series models.
- No bounce/swivel head, limiting flexible light direction.
- Powered by AA batteries instead of a rechargeable option.
- Low guide number, may not be suitable for long-distance subjects.
- Limited manual control features for advanced users.
6. Powerextra DF-400
The Powerextra DF-400 is an affordable and versatile external flash designed for Sony mirrorless cameras, including the Sony A6400.
It’s ideal for beginner and intermediate photographers looking to explore flash photography without breaking the bank. With manual control, bounce capabilities, and decent power output, it’s a great entry-level lighting tool.
- Guide Number: 33 (ISO 100)
- Flash Modes: Manual (M), S1, S2
- Flash Duration: 1/200s – 1/20000s
- Power Source: 4 × AA batteries
- Vertical Rotation: 0°–90°
- Horizontal Rotation: 0°–270°
- Recycle Time: Approx. 3 seconds
- Compatibility: Sony cameras with Multi Interface Shoe
- Affordable price, ideal for beginners or hobbyists.
- Decent guide number for basic indoor and portrait photography.
- Swivel and bounce head for flexible light positioning.
- Simple manual control encourages learning flash basics.
- Durable build quality for the price range.
- Optical slave modes (S1/S2) support off-camera flash setups.
- Fast recycle time suitable for quick shots.
- No TTL support, manual operation only.
- No wireless radio trigger built-in.
- Uses AA batteries, no rechargeable lithium option.
- Not weather-sealed, limited use in harsh environments.
7. Flashpoint TT350S Zoom-Mini TTL R2 Flash
The Flashpoint TT350S Zoom-Mini TTL R2 Flash is a compact and powerful on-camera flash unit designed specifically for Sony mirrorless cameras like the Sony A6400.
It combines portability with advanced features such as TTL metering, HSS (High-Speed Sync), and built-in wireless R2 radio control, making it a reliable tool for both amateur and professional photographers.
- Guide Number: 36 (ISO 100, at 105mm)
- Flash Modes: TTL, Manual, Multi (Stroboscopic)
- Zoom Range: 24mm – 105mm
- Tilt: -7° to 90°
- Swivel: 0° to 270°
- Wireless: Built-in 2.4GHz R2 radio master/slave
- Power Source: 2 × AA batteries
- Recycle Time: ~0.1–2.6 seconds
- High-Speed Sync: Up to 1/8000s
- Weight: Approx. 200g (without batteries)
- Compact and lightweight, perfect match for Sony A6400.
- Supports TTL and HSS, great for dynamic lighting situations.
- Built-in 2.4GHz wireless system, integrates easily with other R2 units.
- Fast recycling time improves shooting speed.
- Swivel and bounce head for creative light control.
- Excellent build quality at an affordable price.
- Compatible with Godox X wireless system (same manufacturer).
- Limited power output compared to full-size flashes.
- No external battery pack support.
- Shorter battery life due to AA batteries.
- Menu navigation can be tricky for first-time users.
ABOUT CAMERA: SONY A6400
The Sony A6400 is a powerful and compact mirrorless camera that’s perfect for photographers and videographers who want professional features in a lightweight body.
Launched as part of Sony’s popular Alpha series, the A6400 delivers excellent performance with its 24.2MP APS-C sensor, fast autofocus, and 4K video recording.
One of its standout features is the Real-Time Eye Autofocus and Real-Time Tracking, making it ideal for capturing sharp portraits, action shots, and fast-moving subjects.
The camera supports up to 11 frames per second continuous shooting with full AF/AE tracking, making it a favorite for street and sports photography.
For content creators and vloggers, the 180° flip-up touchscreen, mic input, and high-quality 4K video make the A6400 a great all-around choice.
Its compact design also makes it easy to carry and perfect for travel.
Key Features to Look at When Buying the Best Flash for Sony A6400
- TTL (Through-The-Lens) Compatibility
Look for a flash that supports TTL metering with Sony cameras. TTL automatically adjusts the flash output based on your scene and camera settings, making it easier to get the right exposure. - Guide Number (GN)
The guide number determines the flash’s power. A higher GN means the flash can illuminate subjects that are farther away or in larger spaces. For Sony A6400, a GN of 28 or more is ideal for general use. - High-Speed Sync (HSS)
HSS support lets you shoot with flash at shutter speeds faster than 1/250s. This is essential for outdoor portraits, freezing motion, and shooting wide-open apertures in bright light. - Wireless Capability
Choose a flash with built-in wireless radio control. This allows you to use the flash off-camera for more dynamic lighting setups without requiring extra cables or triggers. - Swivel and Tilt Head
A flash that can tilt and swivel gives you flexibility to bounce light off walls and ceilings, helping you create soft, natural-looking lighting instead of harsh direct flash. - Recycle Time
Fast recycle time means the flash is ready to fire again quickly, which is crucial for event photography and fast-paced shooting environments. - Size and Portability
Consider the size and weight of the flash. A compact and lightweight flash pairs well with the portable design of the Sony A6400, especially for travel and vlogging.
FAQs
Conclusion
The Sony A6400 is a powerful and versatile mirrorless camera that truly shines when paired with the right external flash.
While the built-in pop-up flash works for quick and casual shots, an external flash unit dramatically improves lighting control, image quality, and creative flexibility.
Whether you’re a portrait photographer, event shooter, or content creator, investing in a TTL-compatible flash with features like High-Speed Sync (HSS), wireless triggering, and bounce/swivel head will take your photography to the next level.
Brands like Sony, Godox, and Flashpoint offer reliable and budget-friendly options specifically made for Sony’s Multi Interface Shoe.
A high-quality flash is a must-have accessory for any Sony A6400 user who wants to master low-light photography, achieve professional-looking results, and unlock their full creative potential.