Olympus M.Zuiko 40-150mm f/2.8 Pro will be the new mid-range zoom lens expected to be announced in the second half of 2014. The upcoming Olympus 40-150mm f/2.8 Pro MFT lens seen on the E-M1 Brochure. See the Olympus 40-150mm f/2.8 Pro lens image mounted on E-M1 below. .
The price of the upcoming Olympus 40-150mm f/2.8 lens to be around $1,200 just like the 50-200mm f/2.8-3.5 SWD lens. There is no detailed product specs or images available at the moment. There is also a 1.4x teleconverter patent pending along with the 40-150mm f/2.8 lens.
First hands-on video of the Olympus 40-150mm f/2.8 lens can also be seen here.
Olympus 40-150mm f/2.8 Pro Lens Seen on the E-M1 Brochure
Here is the description from the brochure:
M.Zuiko 40-150mm f2.8 PRO 80-300mm (35mm camera equivalent) Available in 2014
Incorporating the same powerful optical and digital technologies developed for the top-of-the-line Zuiko Digital lenses, M.Zuiko PRO series lenses are designed to bring the highest level of professional imaging performance to our line of compact Micro Four Thirds system cameras. The second model in this series is a telephoto zoom lens with 35mm camera-equivalent zoom range from 80mm to 300mm. Built tough to stand up to the harsh demands of professional use, this high-grade lens boasts optical performance with f2.8 brightness throughout the zoom range and a durable dust-/splash-proof structure. Together with the 12-40mm f2.8 PRO standard zoom lens, this new lens enables the PRO series to cover the widest possible range of photographic requirements.