Marumi StepDown Ring Lens 46mm To Accessory 43 mm

Marumi StepDown Ring Lens 46mm To Accessory 43 mm | Fit a smaller threaded accessory

Without a step-down ring, a lens and an accessory need matching thread sizes to screw together. The Marumi StepDown Ring connects a 46 mm lens thread with a 43 mm accessory thread, so you can use a smaller threaded filter accessory on that lens instead of setting it aside. It suits photographers who already own a 43 mm threaded accessory and want to pair it with a lens using a 46 mm front thread. Its job is deliberately specific: bridge those two sizes. That makes it a straightforward answer to a kit mismatch, rather than a general-purpose converter. Use it when the accessory’s thread is 43 mm and the lens thread is 46 mm; the size match is the point, and nothing about the ring changes the accessory’s own function. For that reason, it’s most useful when you know exactly which two threads you’re joining.

A simple size check

Match the ring’s lens side to the lens thread, then attach the accessory to the other side. The practical use is simple: a 43 mm threaded filter accessory can be fitted to a lens with a 46 mm thread. This ring is for that specific direction and size pairing.

Technical Specifications

• Product type: Step-down ring
• Lens thread: 46 mm
• Accessory thread: 43 mm
• Colour: Black