B+W UV-Haze #010 MRC MASTER Filter Step-Up Ring it uses a fluorine coating

it uses a fluorine coating on the exposed front and rear elements to reduce smears and make cleaning easier

Programmable Fn Button

and the same beloved ZEISS Sonnar T* 35mm f/2 prime lens from past models

This 34mm-equivalent lens is distinguished by its impressive f/0

In-Camera Time-Lapse

B+W UV-Haze #010 MRC MASTER Filter Step-Up Ring it uses a fluorine coatingB+W UV Haze #010 MRC MASTER Filter The UV Haze #010 MRC MASTER Filter from B+W blocks UV light, which can cause blurring and a blueish cast. An invisible component of daylight, UV light is more intense in pure sea air and high mountain regions. This filter is color neutral and can be kept on your lens even when you don't need it, simply to protect the front of the lens. The filter element is made of glass and is highly transparent. Featuring B+W's MRC