Excellent lens, especially for macros
Image quality and build quality are superb.
Technically, it provides a .5X magnification on the sensor, but since the Fuji X-series cameras are APS-C, and have a 1.5X crop factor, the effective macro magnification is .75X.
Other macro lenses I've used achieve their maximum magnification at wide angle (about 18mm). This means that you have to be within an inch of the subject. The combination of the 90mm equivalent focal length and .75X macro power lets you get close-ups of wildlife (like insects and hummingbirds) from 7.5" away, without scaring them off, or casting a shadow on the subject.
Because of the long focus range, focusing is a little on the slow side in low light. But with decent contrast, and decent light, it's pretty quick. The filter size is a surprisingly small 39mm.
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