Digit@l 40.5-46mm StepUp Ring

Digit@l 40.5-46mm StepUp Ring | Adapt a smaller thread for larger filters

The defining choice is the step-up format: this ring bridges a 40.5mm thread and a 46mm thread, so you can use a larger filter size on a lens with the smaller thread. That’s the practical job it’s made for. It suits photographers who already have filters in the larger size and want to use them with a lens that has the smaller filter thread, rather than buying another filter in a different size. A step-up ring is a small part, but it can make a filter you own useful on another lens. The key is matching the ring’s smaller side to the lens and its larger side to the filter. The name gives you the two sizes to work with; the ring itself doesn’t change what a filter does. If those sizes match your setup, its purpose is straightforward.

Choosing where it fits

Think of this ring as a size adapter between a lens and a filter. The smaller thread goes on the lens side, and the larger thread accepts the filter. That’s what distinguishes a step-up ring from a ring that reduces a filter to a smaller thread. In everyday use, the benefit is simple: you can share filters of the larger size across equipment with the matching smaller thread, instead of needing a separate filter for each thread size. It’s a focused accessory, not a filter or an extension tube for changing how a lens focuses. The useful check is the thread size on each item you intend to connect; the ring only bridges the two sizes named here. If your lens and filter correspond to those ends, this is the size relationship you’re looking for. There’s no extra complication to its purpose.

Technical Specifications

• Product type: Step-up ring
• Thread sizes: 40.5mm to 46mm
• Category: Accessories > Extension Tube