Zeiss Mini Lens Gear Zeiss Mini Lens Gear - GumGum - Zeiss 1 Year Limited Warrant Compatibility: ZEISS Milvus 2/35 With GumGum: ZEISS Loxia 2.8/21, ZEISS Loxia 2/35, ZEISS Loxia 2/50 Size: Mini Diameter: 62 - 69 mmLess Than brGreater Than60 - 67 mm (with GumGum) Material: Aluminum with hardened surface coating