PrimeLight Design VB1-1012 Replacement Lens Doughnut Set

A prompter hood only works if no stray light reaches the back of the beamsplitter, and the part that does that job is the foam doughnut sealing the gap between the lens barrel and the hood aperture. This is the replacement set of three, in 63, 76 and 112mm, which is the range PrimeLight ships with its hoods and covers most stills and cinema primes and zooms.

The set is shared across the line, so the same three pieces fit the VoxBox Pro, the VoxBox Air and the ZeePrompt. They are consumable: foam compresses, tears at the slit, and disappears into kit bags, which is the usual reason a working prompter starts flaring.