Description Specs Compatibility Related Product Highlights: • Hardened Anodized Aluminum Design • Precise Thread for Smooth Mounting • Standard Filter 0.75 Pitch Size • Black Finish to Match Lens & Filters • Limited 2-Year Manufacturer Warranty Fotodiox step-up rings are precision crafted from aluminum-alloy for durability while remaining lightweight. Every ring is inspected to ensure smooth mounting. Every ring is polished and finished with anodized matte surface for professional appearance. This step up adapter ring set allows a filter/attachment with larger thread size to be used with a lens with smaller thread size. Back to Highlights Material Black Anodized Aluminum Thread Pitch 0.75mm Shipping Dimensions 5 x 7.5 x 1.5 in (12.7 x 19.1 x 3.8 cm) @ 0.2 lb (3 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. Bay 50 (B50) Bayonet fits lenses such as: •Zeiss Planar C / C T* 80mm f/2.8 •Zeiss Planar C 100mm f/3.5 •Zeiss UV-Sonnar C 105mm f/4.3 •Zeiss S-Planar C / C T* 120mm f/5.6 •Zeiss S-Planar C / C T* 135mm f/5.6 •Zeiss Sonnar C / C T* 150mm f/4 •Zeiss Sonnar C / C T* 250mm f/5.6 •Zeiss Sonnar-Superachromat C / C T* 250mm f/5.6 •Zeiss Tele-Tessar C T* 350mm f/5.6 Bay 60 (B60) Bayonet fits lenses such as: •Zeiss 50mm f/4 Lens •Zeiss 60mm f/3.5 Lens •Zeiss 80mm f/2.8 Lens •Zeiss 100mm f/3.5 Lens •Zeiss 120mm f/4 Lens •Zeiss 135mm f/5.6 Lens •Zeiss 150mm f/4 Lens •Zeiss 160mm f/4.8 Lens •Zeiss 180mm f/4 Lens •Zeiss 250mm f/5.6 Lens Bay 70 (B70) Bayonet fits lenses such as: •Zeiss 100mm Lens •Zeiss 150mm Lens •Zeiss 180mm Lens •Zeiss 250mm Lens Front Lens Cap for Hasselblad Bay 50 (B50) Lenses View Item Front Lens Cap for Hasselblad Bay 60 (B60) Lenses View Item Lens Hoods for Hasselblad Bay 50/60/70 Lenses View Item Rear Lens Cap for Hasselblad V-Mount SLR Lenses View Item Body Cap for Hasselblad V-Mount SLR Cameras View Item