Key benefits Wide compatibility across lens sizes: a complete set of stepup and stepdown adapters covers 37 mm to 82 mm lens threads, enabling use of filters on a broad range of lenses. Reduces gear clutter: use a smaller selection of filters on multiple lenses by swapping adapters, rather than filters for every size. Secure, precise fit: specifically designed for your camera to provide a tight and secure connection with minimal risk of drift or play. Durable and lightweight: made from aviation aluminum alloy for strengthtoweight ratio and longlasting performance. Easy to use: clearly labeled pairs simplify setup and ensure quick changes in the field. What's included Filter Set (stepup adapters) sizes: 3749 mm, 4952 mm, 5255 mm, 5558 mm, 5862 mm, 6267 mm, 6772 mm, 7277 mm, 7782 mm Stepdown Filter Set sizes: 8277 mm, 7772 mm, 7267 mm, 6762 mm, 6258 mm, 5855 mm, 5552 mm, 5249 mm, 4937 mm Material and construction Aviation aluminum alloy: extremely solid and lightweight Built for durability in field use while keeping weight to a minimum Design and fit Specifically designed for your camera for a tight and secure fit Precise threading and slim profile to minimize vignetting and maintain image quality Applications and use scenarios Travel and landscape photography: carry a compact set of adapters to use standard filters across multiple lenses, minimizing gear while maximizing options. Portrait and architectural work: quickly adapt to different lens diameters without changing your filter lineup, preserving consistent color and exposure control. Onlocation shoots with varied lenses: switch between lenses with different filter threads efficiently, reducing downtime and keeping shooting rhythm intact. Compatibility and usage notes Sets cover common lens filter threads from 37 mm up to 82 mm Use the appropriate stepup or stepdown pair to match your lens and the filter you intend to use Ensure proper alignment and gentle tightening to maintain a secure fit and avoid crossthreading