Yongnuo YN24EX Macro Twin Flash for Canon EOS DSLR Cameras

The Yongnuo YN24EX is a professional macro twin flash unit designed for Canon EOS DSLR cameras. It features two independent flash heads mounted on a ring around the lens, providing even and shadow-free illumination for close-up photography. With E-TTL II / E-TTL and manual modes, a guide number of 24 (ISO 100, 105mm), and adjustable flash ratio control, this flash offers precise lighting control for macro enthusiasts and professionals.

Advantages

Dual flash heads allow for creative lighting with individual control (1:8 to 8:1 ratio). Built-in 5W LED focus assist lamps with adjustable brightness ensure sharp focus in low light. Compatible with Canon E-TTL II / E-TTL systems for automatic exposure. Includes mounting rings for 52mm, 58mm, 62mm, 67mm, and 72mm lens threads. Recycles in approximately 3 seconds with AA alkaline batteries, and supports external power for extended sessions.

Suitable for

• Macro photography of insects, flowers, and small objects
• Close-up product photography
• Medical and dental imaging
• Any situation requiring even, shadow-free lighting at close distances

Key specifications

• Flash Type: Macro Twin Flash
• Compatibility: Canon EOS DSLR (E-TTL II / E-TTL)
• Guide Number: GN24 (ISO 100, 105mm)
• Flash Modes: E-TTL II / E-TTL, Manual (M)
• Flash Duration: 1/200s - 1/20000s
• Recycle Time: Approx. 3 seconds (AA alkaline)
• Color Temperature: 5600K
• Power Source: 4x AA batteries (Alkaline or Ni-MH)
• Number of Flash Heads: 2
• Focus Assist Lamp: 2x 5W LED (adjustable brightness)
• Mounting Ring Sizes: 52mm, 58mm, 62mm, 67mm, 72mm
• Flash Ratio Control: 1:8 to 8:1 (individual left/right)
• Exposure Compensation: ±3 EV in 1/3-stop increments
• External Power Port: Yes (for Yongnuo SF-18C / SF-17C)
• Display: LCD with backlight
• Firmware Upgrade: Via USB port
• Battery Life: 200-2500 flashes (AA alkaline)

Recommendations

For best results, use Ni-MH rechargeable AA batteries for faster recycle times and consistent performance. Pair with a Yongnuo SF-18C or SF-17C external power pack for extended shooting sessions. Ensure your lens has a filter thread of 52mm to 72mm for direct mounting.