但係如果用佢的 FILTER-HOLDER, 咁就好似要用 ADAPTOR RING, 用得這個, 部機就要有 Thread 位, F100 那些無位上 ring 的.....
而 Universal Ring 佢係咁寫的.
"For lenses with non-standard diameters (or with damaged threads), there exists a so-called ”universal” ring. It is attached to the OUTSIDE of the lens and will fit on all lenses under 75 mm (A Series)"
(好似變左做器材討論忝. : P)