Skip to main content

Fujifilm’s new nifty 50 f/1 lens can autofocus in near darkness

Fujifilm just unveiled its brightest aperture lens yet — and unlike most ultra-bright lenses, it doesn’t ditch the autofocus. Announced on Thursday, September 3, the Fujifilm Fujinon XF50 f/1.0 R WR is the first f/1.0 mirrorless lens with autofocus.

Despite the bright aperture, Fujifilm didn’t eliminate the autofocus system. The company says that the lens even allows the X-T4 and X-Pro3 to focus as low as -7EV, near-darkness conditions that are a full stop better than pairing those same bodies with a different lens. The lens works with the camera’s on-sensor Phase Detection system, including face and eye AF.

But, nailing the focus on a lens with such shallow depth of field, when shot wide open, will likely be a challenge. Fujifilm designed the lens with a 120-degree focus ring that, in manual focus mode, the company says is more accurate than any existing XF lens. The lens, Fujifilm says, is also designed to minimize focus shift.

“We’re really excited about the XF50mmF1.0 R WR,” Victor Ha, Fujifilm’s electronics division senior director of marketing and product management, said in the announcement. “Not only is it the fastest interchangeable lens Fujifilm has ever produced, but it’s also an incredible tool for visual storytellers to use in telling their stories because its autofocus can achieve critical focus at very shallow depth of fields.” 

The lens is built from 12 elements in nine groups. An aspherical element and two extra-low dispersion elements are included to help minimize spherical aberration. Weather sealing in 11 locations helps keep out dust and moisture, while it is rated for shooting down to 14 degrees. 

Despite the high-end construction, the Fujinon XF50 f/1.0 R WR weighs 1.86 pounds and measures just over four inches long. Fujifilm had originally teased the development of a 33mm f/1.0 lens, but in a later announcement said that the lens would be too heavy, promising a 50mm instead.

While the lens is the first f/1 autofocus for mirrorless, it’s not the brightest glass out there. Nikon’s Noct lens for full-frame cameras is a f/.95 lens and Leica offers the Noctilux series at f/.95, but both lack an autofocus motor. The fast f/1.2 aperture is more common, and f/1.8 is even easier to access still.

Unsurprisingly, the f/1.0 lens will come at a price — but at one that’s less than options like the Noct and Noctilux. The Fujinon XF50mm f/1.0 R WR lens is expected to retail at about $1,500, with availability sometime in the fall of 2020.

Editors' Recommendations

Hillary K. Grigonis
Hillary never planned on becoming a photographer—and then she was handed a camera at her first writing job and she's been…
‘Photoshopped’ royal photo causes a stir
The Princess of Wales with her children.

[UPDATE: In a message posted on social media on Monday morning, Princess Kate said that she herself edited the image, and apologized for the fuss that the picture had caused. “Like many amateur photographers, I do occasionally experiment with editing," she wrote, adding, "I wanted to express my apologies for any confusion the family photograph we shared yesterday caused."]

Major press agencies have pulled a photo of the U.K.’s Princess of Wales and her children amid concerns that it has been digitally manipulated.

Read more
Help NASA in its quest to learn more about our sun
Scientists have used the ESA/NASA Solar Orbiter’s Extreme Ultraviolet Imager (EUI) in a new mode of operation to record part of the Sun’s atmosphere that has been almost impossible to image until now. By covering the Sun’s bright disc with an ‘occulter’ inside the instrument, EUI can detect the million-times fainter ultraviolet light coming from the surrounding corona.

SunSketcher Solar Eclipse Project Tutorial

NASA is calling on citizen astronomers in the U.S. to help it learn more about our sun.

Read more
How to photograph April’s solar eclipse, according to Nikon
A total solar eclipse.

Solar Eclipse Photography Tips from Nikon | Best Camera Settings | 2024 Solar Eclipse Guide

Excitement is building for next month’s total solar eclipse that will see the moon’s shadow fall across a large part of the U.S., from Maine in the northeast all the way to Texas in the south.

Read more