Lionsa Glainne Seata de 6, Dia. 50mm

Anns an t-seata tha sia de na seòrsaichean lionsa as cudromaiche., Tha e a ’toirt a-steach aon de na leanas: plano-concave, convex-concave, a’ dùblachadh concave, concave-convex, plano-convex, agus convex dùbailte. ? Tha trast-thomhas an lens timcheall air 50-mm.