Promaster 轉接環 - 40.5mm-46mm

Machined perfectly, it screws on smoothly without any wobble or cross-threading—exactly what I needed to pair my 40.5mm lens with a larger filter.

Just got this to mount a 46mm filter on a 40.5mm lens and the machining is spot on—no wobble, no cross-threading. The anodized finish feels durable too, so it should hold up in my bag.

Threads on smoothly and sits flush against the lens, so no wobble when I mount my bigger filter. The machining is clean with no sharp edges, and it does exactly what it's supposed to do for a few bucks.