on February 14, 2009
Because of the 4:3 systems 2x multiplier, this lens delivers the same reach as the traditional 300mm 2.8 lens on regular cameras. and it is faster by one stop.
On a 4:3 system camera, the150mm f2.0 is practically twice the light as the traditional full-frame 300mm f2.8 which means the f.2.0 lens get 1/250 at wide open when my 2.8 lens get 125th exposure time. its not the end f the world, but means a little more speed to freeze shots towards the end of the day.
Sharpness and contrast is outstanding. the lens is half the weight of a similar lens for a Nikon.
This lens have been with me to and allowed me to photograph in low-light when normal lenses just are not fast enough.
HIGHLY recommended for sports, adventure, nature and fashion photography. Its not a small lens, this is for serious users.
UPDATE Jun 2015.
For what its worth, after all these years, this lens is still paying its dues, and is a everyday tool in my Panasonic GH4 camera kit.
on May 23, 2009
It's enough to say this lens is belong to Super High Quality grade from Olympus. The lens is very sharp and sometimes too sharp. hard to PP because of the sharpness so you need to add more sharpness if you resized the photo or just crop 100% and you'll be fine. I have not used this lens with any teleconverter yet but I'll get EC-20 soon.
It's heavy but worth the weight and the money. the contrast and the colors just perfect. fast focus but a version with SWD would be super fast.
I posted a photo, see it yourself.
on March 18, 2016
Stellar lens. IQ is amazing. It's a specialty lens for wildlife, sports and the like. Works well on the Olympus EM1 w/MMF3 adapter. I could never afford one of these when I had a 4/3rds kit and always lusted for this lens. It's just amazing and now it's nearly affordable on the 2nd hand market and is better than the Pro 40-150 F2.8, which is also a stellar lens. This one is a stop faster, wider, heavier, while the other is more versatile. Also works well with the EC20 or EC14 teleconverters if you really need long reach. More economical/versatile than getting the 300mm Pro and faster.
I am not a typical Telezoom shooter, but this lens is so wonderful you'll find uses for it. It can do portrait, but it's a big big/heavy for casual use. For it's intended purpose the size is fine. With a 2x teleconverted you'll probably need a monopod giving you 600mm F4 equivalent (35mm perspective) reach. This is a Must for wildlife or sport shooters who are serious about photography or need speed/low light performance.