NiSi Brass Pro Step Up Ring 40.5-49mm

Description

Overview

The NiSi Brass Pro 40.5-49mm Step Up Ring is a precision-machined adapter designed to let you use 49mm threaded filters on lenses with a 40.5mm filter thread. Part of the NiSi Brass Pro Step Up Ring range, this adapter is built for photographers and content creators who want a reliable, low-friction solution for expanding their filter compatibility without switching between multiple filter sizes.

Whether you are a landscape photographer shooting long exposures, a travel shooter looking to simplify your kit, or an enthusiast building a versatile filter system, this brass step up ring offers a practical and well-engineered way to get more from the filters you already own.

Experience & Benefits

One of the most common frustrations with standard aluminium step up rings is binding — that locked, difficult-to-remove feeling that can cost you valuable time in the field. The NiSi Brass Pro Step Up Ring addresses this directly. Brass construction naturally resists the binding and jamming that can occur with aluminium rings, particularly when filters are attached for extended periods or during temperature changes. This makes removal smoother and less stressful, especially when you are working quickly on location.

The knurled outer edge is a small but meaningful design detail. It gives you a confident grip during filter changes, even when working with cold hands or in low-light conditions. For photographers focused on long exposure photography or night shooting, where precision and control matter, this kind of thoughtful ergonomic detail reduces friction in the workflow.

Inside the ring, a special anti-reflective treatment minimises internal reflections that could otherwise degrade image quality. This is particularly relevant during long exposures and high-contrast shooting scenarios where stray light entering through the filter thread area can cause unwanted artefacts. The matte black interior finish works with this treatment to absorb rather than scatter light, keeping your images clean and consistent.

The anti-reflective design also makes this ring a dependable companion for use with NiSi circular filters, ND filters, CPL filters, and other photography filters where optical clarity is a priority. Rather than being a passive connector, the Brass Pro ring is engineered to support image quality from mount to glass.

Practical Details

The 40.5-49mm step up ring is the correct choice when your lens has a 40.5mm filter thread and you want to use 49mm filters. This is a common pairing for compact prime lenses and certain mirrorless system lenses, where smaller front elements are paired with a larger filter ecosystem. By stepping up to 49mm, you gain access to a broader range of NiSi circular filters without needing to invest in a separate set for each lens thread size.

Fitting the ring is straightforward — thread it onto your lens, then attach your 49mm filter directly to the ring. The brass construction ensures the threads engage cleanly and release without the seizing that can occur with aluminium-to-aluminium contact under extended use. This makes it a practical long-term addition to any filter kit, particularly for photographers who regularly swap filters across multiple lenses.

The NiSi Brass Pro Step Up Ring integrates naturally into a system-based approach to filter use. If you are building or expanding a NiSi filter kit around a single filter diameter, this ring helps you consolidate without compromising on performance. It pairs well with NiSi’s range of circular ND filters, True Color CPL filters, UV filters, and black mist diffusion filters in the 49mm format.

Summary

• Eliminates binding and jamming — brass construction allows smooth attachment and removal compared to standard aluminium step up rings
• Anti-reflective interior treatment reduces internal reflections for cleaner results during long exposures and high-contrast shooting
• Knurled outer edge provides a secure, comfortable grip for confident filter changes in the field
• Matte black finish absorbs stray light and contributes to a cleaner optical environment
• Expands filter compatibility — use your 49mm NiSi filters on lenses with a 40.5mm filter thread
• Thread size: 40.5mm (lens side) to 49mm (filter side)
• Frame material: Brass
• Inner finish: Anti-reflective treatment with matte black coating
• Part of the NiSi Brass Pro Step Up Ring range
• Best for: landscape photographers, travel shooters, and long exposure photographers looking to consolidate filter sizes
• Best for: photographers using compact mirrorless lenses with 40.5mm filter threads who want access to 49mm filter options

What’s Included

• NiSi Brass Pro 40.5-49mm Step Up Ring
• Protective Hard Case

The NiSi Brass Pro 40.5-49mm Step Up Ring is a dependable, well-built adapter for photographers who value optical performance and smooth workflow in equal measure. Its brass construction, anti-reflective interior, and knurled grip make it a practical upgrade over basic step up rings, and it integrates cleanly into the wider NiSi filter ecosystem. If you are building a filter kit around 49mm circular filters and need a reliable way to use them on a 40.5mm lens, this ring is a straightforward and well-considered solution. Shipped from the USA with US-based local warranty and support.