【product brand】: No. Song
【Product specifications】: Bayonet
【Commodity materials】:Use aviation grade aluminum alloyMaterial, precision machining by CNC machining center, surface cathodic anti-oxidation treatment, high elastic bayonet bead, compact installation
【Applicable lens】:Zeiss Zeiss 21MM/25MM T* 2.8 ZM and 21MM T* 4.5 ZM lens
【Features】:Using bayonet design, does not affect the use of UV and original lens cover