Universal Ring Flash Adapter RF 155 for Speedlights - 185mm Diffuser, Macro & Portrait Lighting

Transform your standard shoe-mount speedlight into a versatile ring flash with the RF 155 adapter. Its 185mm outer diameter and 85mm inner opening fit most flash heads, delivering a distinctive circular catchlight and even, shadowless illumination for macro, portrait, and product photography.

Overview

The RF 155 is a passive ring flash adapter that slides onto your existing speedlight, redirecting light into a ring-shaped diffuser. Crafted from high-quality ABS plastic, it combines a black rigid body with a white diffuser surface to soften and spread light evenly. With a depth of 55mm, it maintains a low profile while producing professional-quality ring lighting without the need for a dedicated ring flash unit.

What stands out

• Universal compatibility: fits most shoe-mount speedlights with an 85mm flash head opening.
• Creates a true ring light effect with attractive circular catchlights in subjects' eyes.
• Provides even, shadowless lighting ideal for close-up and portrait work.
• Lightweight and compact design for easy transport and quick setup.
• Durable ABS construction ensures long-lasting performance in the field.
• No external power required – works passively with your existing flash.

Technical details

• Product type: Ring flash adapter / diffuser
• Mounting method: Slide-on attachment to flash head
• Inner diameter (flash head): 85 mm
• Outer diameter: 185 mm
• Depth: 55 mm
• Material: High-quality ABS plastic
• Colour: Black body, white diffuser surface
• Light loss: Approximately 1.5-2 f-stops
• Recommended use: Macro photography, portraiture, product photography
• Construction: Durable, rigid design

Our verdict

The RF 155 ring flash adapter is an affordable and effective way to achieve professional ring lighting with your existing speedlight. Its universal fit, solid build, and signature circular catchlights make it a valuable addition to any photographer's kit, especially for macro and portrait enthusiasts.