Fujinon XF 10-24 f4

The XF10-24mm lens is weather-sealed, so you can shoot in adverse weather conditions. It also includes an advanced optical image stabilization (OIS) system to prevent unwanted blurring when shooting handheld.

Design changes include an auto-position lock on the aperture ring to help prevent accidental aperture changes, and the body also weighs less at just 385g, so you can travel lightly.

Wide-angle 15-36mm equivalent focal length
The XF10-24mmF4 R OIS WR offers a 35mm equivalent focal length of 15-36mm, as well as a constant aperture of F4 regardless of where it is in the zoom range.

Improved Optical Image Stabilisation (OIS)
A new and improved gyro sensor inside the XF10-24mmF4 creates an additional stop of stabilisation, bringing overall OIS performance to 3.5 stops. This can be further extended to 6.5 stops when paired with the in-body image stabilisation (IBIS) in some X Series cameras. The result is a whole new world of tripod-free opportunity, even after the sun goes down.

Advanced internal focusing system
By utilising an advanced internal focusing system, the XF10-24mmF4 is capable of precision autofocus that is not just extremely fast, but near-silent. By only driving the smaller lenses at the middle and back of the lens, responsiveness is maximised to provide accuracy and reliability that can be trusted, even when subjects are moving around the frame.

Weather-resistance against dust, moisture and cold down to -10°
In addition to its tough, metal external casing, the XF10-24mmF4 has been equipped with weather- resistance that helps protect it from dust and moisture. The lens can also operate in temperatures as low as -10°C, making it the ideal companion when battling the elements to get the perfect shot, from wild Arctic expanses to arid desert dunes.

Source: Fujifilm Official