This connection is 72MM
【Product model】:72mm medium and telephoto metal lens hood.
【Scope of application】:Use of medium telephoto lens
【colour】: Matte black (Black)
【Specification】:Inner port diameter 72mm spiral type, outer port diameter 77mm, can use 77mm lens caps of various brands, or ordinary lens caps 77mm:
【Material quality】:All metal alloy materials are externally frosted and internally threaded + matt paint treatment
【Interface Type】: Screw mouth(Install on the lens like a UV lens or on the UV lens)
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