Olympus has released a little more detail about its upcoming 150-400mm F4.5 with built-in 1.25x teleconverter. The lens' development was first announced in January 2019, and Olympus says it will arrive on the market in winter of 2020. A couple of images of the final lens have also been shared.

Additionally, two more M.Zuiko Pro lenses have been added to the roadmap: an ED 8-25mm F4 Pro and an 'unspecified' macro lens which appears around the 200mm equiv., focal length on the chart.

OM-D E-M1X owners can also look forward to a firmware update in winter 2020 adding bird detection to the camera's Intelligent Subject Tracking Autofocus.

Press release:

OLYMPUS UNVEILS UPDATED M.ZUIKO® DIGITAL LENS ROADMAP

Provides Updates on the Development of the M.Zuiko Digital ED 150-400 F4.5 TC1.25x IS PRO Lens and Announces the Development of Firmware to Support Bird Subject Detection Autofocus for the OM-D® E-M1X

Center Valley, PA, July 2, 2020 – Olympus is pleased to announce an updated M.Zuiko Digital lens roadmap, outlining plans to expand the M.Zuiko lens lineup and including an update of anticipated availability of the previously announced M.Zuiko Digital ED 150-400mm F4.5 TC1.25x IS PRO super telephoto zoom lens with built-in 1.25x teleconverter.

The upcoming M.Zuiko Digital ED 150-400mm F4.5 TC1.25x IS PRO lens, for which development was announced in January 2019, continues with an estimated scheduled release of winter 2020. This is the first Olympus® interchangeable lens with a built-in 1.25x teleconverter, extending the maximum focal length to 1000mm1 (35mm equivalent). Final images of the lens are now available.

Two new lenses, the M.Zuiko Digital ED 8-25mm F4.0 PRO lens, as well as an unspecified macro lens, will join the M.Zuiko lineup as part of Olympus’ commitment to broaden the field of photographic expression. Olympus will continue enhancing its lens lineup to maximize the unrivaled system portability made possible by the compact, lightweight, high image quality of the Micro Four Thirds® System.

Furthermore, to make super telephoto shooting more convenient and to fulfill the growing needs of birding and wildlife photographers, development is underway to newly add Bird Detection capability to Olympus’ Intelligent Subject Detection Autofocus on the OM-D E-M1X camera. This new feature will be available for the E-M1X via a firmware update that is scheduled for release in Winter 2020.

1 When using the built-in teleconverter. Widest aperture setting is F5.6.