10 Best External Flashes Of 2026
External Flashes — Reviews, Recommendations & Updated Buying Guide September 2026
Sony External Flash with Wireless
おすすめの理由
Insta360 Ace Pro 2/Ace Pro 2-in-1
おすすめの理由
NEEWER Z2-S 2.4G TTL Flash Round
おすすめの理由
Godox TT350C Speedlight For Canon
おすすめの理由
ULANZI SL03 Camera Mini Flash
おすすめの理由
クイックピック
10 Best External Flashes Of 2026
クイックピック
Sony External Flash with Wireless Remote Control, Black (HVL-F28RMA) | Wireless Remote Control, (HVL-F28RMA)
Insta360 Ace Pro 2/Ace Pro 2-in-1 Flash + Fill Light
NEEWER Z2-S 2.4G TTL Flash Round Head Speedlite Compatible with Sony Cameras 76W 1/8000s HSS, Diffuser 2 Modelling Lamps Better UI TTL/M Switch Button 3000mAh Battery 600 Full Flash
Godox TT350C Speedlight For Canon TTL HSS, 2.4G GN36 Mini Camera Flash Speedlite HSS 1/8000s, Approx.210 Full Power Flashes, 0.1-2.2s Recycle Time, External Speedlite for Canon Camera
ULANZI SL03 Camera Mini Flash, Speedlite Video Light GN8 6500K for DSLR | For Sony/Canon/Fuji/Nikon, CRI 97, with Single-contact Universal Hot Shoe Mount, 90° Angle Adjustable, Typ-c Rechargeable
購入ガイド: External Flashes
📋 目次
1Will an external flash work with my camera?
Check your camera's hot shoe type—most modern DSLRs and mirrorless cameras use a standard ISO hot shoe, but Sony uses a unique Multi Interface Shoe. Also verify the flash brand matches your camera's system (Canon, Nikon, Sony, etc.) for TTL compatibility, though third-party flashes work universally in manual mode.
2What does GN (guide number) mean and why does it matter?
Guide number indicates the flash's power—higher GN means it throws light further and works better in larger spaces or outdoors. For small rooms and close-up work, a GN of 30-40 is plenty, but for event photography or outdoor use, look for GN 50 or higher.
3Is it worth buying a camera-brand flash or should I get a third-party one?
Camera-brand flashes offer perfect TTL metering and faster autofocus assist, which matters for fast-paced shooting. Third-party flashes cost less and offer good features, but may have slower recycling times or less reliable wireless triggering—choose brand if you need speed and reliability, third-party if budget is tight.
4What's the difference between on-camera and off-camera flash photography?
On-camera flashes are convenient for everyday use but create flat, harsh lighting directly from the lens. Off-camera flashes (with a stand or held elsewhere) let you angle light for softer, more professional results—worthwhile if you shoot portraits or events regularly.
5How important is recycle time and battery life?
Recycle time (how fast the flash recharges between shots) matters most for event and portrait work where you're shooting rapidly—prioritize fast recycling. Battery life depends on power source; alkaline batteries are cheap but drain quickly, while rechargeable NiMH batteries are more economical for frequent use.
選び方について
編集者は製品を試し、それについて書くことを心から愛するメンバーです。各製品の実際の使いやすさと強みを比較し、最も重要な点を独自の「おすすめの理由」にまとめています。購入前に、大切なポイントがひと目でわかります。