First impressions of the Fuji weather-sealed XF 18-135mm
f/3.5-5.6 | MirrorLessons

…. Fujifilm announced its first weather-sealed zoom lens and X Photographer Max De Martino got a sample right before he started his new photography project. Max generously shared his impressions with us and allowed us to publish the English version of his post as well as some pictures. The same thing happened three months ago when Max shot the first wedding with the Fuji X-T1. The XF 18-135mm f/3.5-5.6 is water and dust resistant thanks to more than 20 sealed areas, making it the perfect lens for the weather-sealed X-T1. Even more interesting is a new version of their O.I.S. (Optical Internal Stabilisation) that claims to gain 5 stops of equivalent exposure thanks to two high precision gyro sensors. These sensors are installed with quartz oscillators which detect movement from high frequency to low frequency bandwidths. These are very interesting specs that we will likely see in the upcoming f/2.8 constant aperture zooms. According to Max, the new optical stabilisation works better than the other O.I.S. lenses such as the 55-200mm f/4.8-5.6. The lens seems to be technically advanced also thanks to its built-in air ventilation system that is placed on the inside of the base of the lens barrel. Its role is to prevent dust particles and moisture from getting into the lens……..

Source: www.bestmirrorlesscamerareviews.com