Fujinon XF 33mm F1.4 R LM WR - Internal Movement

Started 5 months ago | Discussions thread
xtm Senior Member • Posts: 1,363
Re: Fujinon XF 33mm F1.4 R LM WR - Internal Movement

Both my 33 1.4 and 18 1.4 KLUNKED when being shaken. I think a group of elements are bouncing up and down inside the barrel. It's kinda cool. Sometimes when I'm bored I just shake them up and down. They don't really klunk hard, it's actually a soft muffled klunk, and very soothing. My 50 f1 doesn't have this klunk, which leads me to believe it's a feature of the "LM" (linear motor). 50 f1 doesn't have "LM" so no klunking.

The klunk disappear once mounted and powered on. Like some sort of a magnet pulls them in.

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