the most versatile lens I’ve got in the ZS frames is a yellow to photochromatic dark brown . Great on game days as well as clays . ZS were once called Zeiss Sport and distributed by Zeiss . I first wore them nigh on forty years ago . They are no longer connected to Zeiss , who now push Pilla as the the go to lens with more colours than Farrow and Ball . I reckon millions and millions and millions of clays must have been shot by people wearing this frame .
I went from RE Rangers to ZS Sport prescription glasses a couple of years ago. Excellent quality and value for money.