This particular lens has a maximum focal length of 16 mm and a minimum focusing distance of 0.13 m. If you want to use a filter on the lens, then the filter size is 43 mm.
From Photospecialist
Canon RF 16 mm F/2.8 STM
The product is available from £197.42 at international stores.
HDEW Cameras
Canon RF 16mm F2.8 STM
This product is also available at 3 unverified merchants.
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