Fujifilm XF55-200 mm F3.5-4.8 R LM Optical Image Stabiliser Lens

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I see no spherochromatism (called color bokeh by hobbyists). This means that out-of-focus highlights remain neutral and don't take on any slight color fringes. When used on the X-mount cameras with their 1.52x crop factor, it sees the same angle of view as a 80-300mm lens sees when used on a 35mm camera.

The stabilizer works extraordinarily well. Fujinon knows stabilizers better than anyone; they make the stabilized binoculars used by NASA, as well as the Techno Stabi 10x40 binoculars I use. My 14 power binoculars give me a stable image, even from small fixed-wing aircraft! I think Fuji's been making stabilized binoculars longer than anyone's made stabilized camera lenses. It's pics like these that made me want the 55-200 so much in the first place but I haven't had any success capturing sharp photos at 200mm with this lens. I bought this used and noticed that at 200mm all the photos were very blurry no matter what I tried. I'm hoping that I wasn't ripped off buying a defective lens. The XF 55-200mm F3.5-4.8 R LM OIS telephoto zoom follows in the same vein - according to Fujifilm the aim is to provide premium optical quality and construction alongside class-leading image stabilization. Like the 18-55mm it features a relatively fast maximum aperture, gathering half a stop more light than most similar zooms for SLRs, and it uses a pair of linear stepper motors for near-silent autofocus. As with the other XF lenses, it offers all-metal barrel construction and an on-lens aperture control ring. The overall picture is of a decidedly premium lens, that's quite unlike the inexpensive 55-200mm F4-5.6 telezooms for APS-C SLRs. Headline features

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Light falloff is completely invisible even wide open, as shot on the X-T1 which is probably correcting it automatically.

In RAW mode - thus with disabled distortion and without vignetting compensation - it is a different story. At max. aperture there's a strong light falloff across all focal lengths. Stopping down resolves this, of course. Due to the slower speed at the long end of the range, the issue is somewhat more apparent here making it advisable to stop down to f/8 (unless corrected). Read Next: Fujifilm X-T20 Review (So good I bought 2) | Fujifilm 16mm 2.8 Review | Photography BlogApochromatic lenses have special lens elements (aspheric, extra-low dispersion etc) to minimize the problem, hence they usually cost more. There is no mechanical aperture ring on this lens, but you do still get an aperture control ring, that allows you to adjust the iris opening from the lens itself if you so wish. There is a simple two-way switch that allows you to swap from using this feature to controlling the aperture from the camera's thumbwheel.