Description Specs Compatibility Related Product Highlights: a￠ Provides the ability to mount a variety of 145mm filters and more! a￠ Doubles as a hood to help protect your lens from damage, scratches, fingerprints and the elements a￠ All metal build, attaches to the filter threads of your lens securely a￠ Ultra wide angle construction to eliminate vignetting a￠ Limited 2-Year Manufacturer Warranty The WonderPana 145 Step-Up Ring provides the freedom to use and share 145mm round filters on all of your regular lenses. Fotodiox step-up rings are made with precision out of premium grade aluminum. Every ring is inspected to ensure smooth mounting and is polished and finished with anodized matte surface for professional appearance. Step up rings allow larger sized filters to fit on lenses with smaller sized filter threads. This step ring will allow the WonderPana145 filters (with a 145mm thread) to fit on lenses with a 77mm, 82mm or 95mm threaded front. Smaller step up rings can be used to adapt to smaller sized lenses (ie; if your lens has a 58mm filter thread, the 58-77mm and 77-145mm step up rings would be used together) and can be purchased separately. WonderPana 145 Step-Up Ring Options WonderPana 145 Step-Up Ring Only WonderPana FreeArc Step-Up Kit a￠ 145mm Filter Thread Enabled Step-Up Ring a￠ 145mm Filter Thread Enabled Step-Up Ring with Rotating Filter Stage a￠ 6.6x8.5" Filter Enabled via Included Brackets a￠ Included 145mm Lens Cap Back to Highlights Materials Premium Grade Anodized Aluminum Product Dimensions 5.9 x 5.9 x 0.4 in (14.9 x 14.9 x 1 cm) @ 0.3 lb (4.2 oz) Shipping Dimensions Ring: 7 x 8 x 2 in (17.8 x 20.3 x 5.1 cm) @ 0.6 lb (10 oz) Kit: 7 x 8 x 4 in (17.8 x 20.3 x 10.2 cm) @ 1.4 lb (22 oz) Manufacturer Fotodiox Inc. Warranty Limited 24-Months All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design. a￠ WonderPana 145 & FreeArc Filter Holder Systems (145mm/168x216mm) WonderPana 145 & FreeArc Filter Holder Systems (145mm/168x216mm) View Item WonderPana 145 Step-Up Rings (145mm/168x216mm) View Item WonderPana 145 & FreeArc Round Filters (145mm) View Item WonderPana 66 Rectangular Filters (168x216mm) View Item WonderPana 66 Upgrade Bracket - For Adding 6.6in Rectangular Filters to the WonderPana Holder View Item WonderPana 145mm Replacement Lens Cap for the WonderPana 145 or FreeArc Systems View Item WonderPana 145mm Replacement Metal Lens Cap for the WonderPana 145 or FreeArc Systems View Item