Key specs:
The new XF50mmF2 R WR is a mid-telephoto lens that is designed to deliver the very best results from Fujifilm’s unique X-Trans CMOS sensor. The XF50mmF2 R WR, perfect for any type of travel photography, is compact and lightweight, and features 9 elements in 7 groups, including one aspherical ED lens, and has an inner focusing system, driven by a stepping motor for fast and silent autofocusing. The premium XF50mF2 R WR is made of metal and glass for a stylish, robust design with a premium feel, while the aperture and focusing rings have been designed to be comfortable and easy to use. The lens is also weather and dust resistant, and operates in temperatures as low as 14°F\10°C, making it ideal for shooting in a variety of weather conditions.
Hands-on and samples
Sample
https://www.ephotozine.com/article/fujifilm-xf50mm-f-2-r-wr-lens-hands-on-sample-photos-30489
More of the same
She looks such after 15 testers
http://www.photographyblog.com/previews/fujifilm_xf_50mm_f2_r_wr_photos/
Review
The 50mm f/2 provides great value and high-end imaging in a small package, and continues Fuji’s excellent reputation for creating quality optics.
http://admiringlight.com/blog/review-fujifilm-fujinon-xf-50mm-f2-r-wr/
Review
https://www.focus-numerique.com/focale-fixe/tests/fujifilm-fujinon-xf-50-mm-f-2-r-wr-3045.html
Review
Centre sharpness is excellent from the widest aperture of f/2, dropping off slightly at the narrowest aperture of f/16, due to diffraction. When viewed at normal printing or web sizes, this slight softening isn’t noticeable, but you can just about see it when viewing at 100%. The edges aren't as sharp as the centre, particularly at wide apertures. The sharpest results can be seen at f/8-f/11.
http://www.photographyblog.com/reviews/fujifilm_xf_50mm_f2_r_wr_review/
Review
Given the quality of Fujifilm lenses, it's no surprise that this one also performs spectacularly when it comes to sharpness. Wide open, the 50mm f/2 offers exceptionally sharp results in the center with only the slightest hint of corner softness by comparison. Stopping down a bit will sharpen things up across the frame. We measured optimal sharpness, with practically flat sharpness graph, at f/5.6. Past f/5.6, image quality remains very sharp, although we do begin to measure a slight dip in sharpness as you continue to stop down. At f/11, sharpness is still very good, while diffraction-related softness becomes more noticeable at the narrowest aperture of f/16.
https://www.imaging-resource.com/lenses/fujinon/xf-50mm-f2-r-wr/review/
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