40mm
70mm
150mm
The combination of great build quality and performance alone are enough to recommend this lens.
http://www.ephotozine.com/article/olympus-m-zuiko-digital-ed-40-150mm-f-2-8-pro-lens-review-26893
Olympus M.Zuiko Digital ED 40-150mm f/2.8 Pro is the best Micro Four Thirds zoom lens to date. Sharpness, contrast and resolution is outstanding wide open at the 40mm zoom setting, and very good at longer focal lengths too.
http://www.photographyblog.com/reviews/olympus_m_zuiko_digital_ed_40_150mm_f_2_8_pro_review/
In good light, or with decent contrast, this lens is fast to focus though, so situationally, it’s pretty damn quick. It’s sharp, contrasty and has good fidelity at lower ISO’s which is where most folks will probably be shooting this for outdoor sports, wildlife, studio or outdoor portraiture or the like, and in those situations I think it will be a great addition to any micro 4/3 system shooter’s bag.
Owners of OM-D cameras who want a fast medium-telephoto lens with weatherproof sealing plus superior build quality and performance will find it good value for money.
http://www.photoreview.com.au/reviews/lenses/m4-3/olympus-m.zuiko-digital-40-150mm-f-2.8-pro-lens
Sadly no, it does not hold focus throughout zoom. Maybe because of the dual VCM motors?
I've used Olympus 14-35mm and 35-100mm f2.0 zooms and they're both superb photographic lenses, but they share the typical MFT drawbacks for video: aperture glitches and focus drift while zooming. So the question is...
Does the Olympus 40-150mm f2.8 hold focus and aperture steady while zooming?
Image quality of the 40-150 lens is excellent, even at wide-open. The image acceptably holds its sharpness into the corners of the frame. When used for portraiture at a wide aperture, the out of focus areas in the background look smooth and soft.
It produces sharp detail with good contrast throughout the focal range. This is a lens that you can quite happily shoot wide open without having to worry about edge definition, aberrations or distortion. Focus is something you need to be a little more aware of though. And for portraiture at the wider end of its range the 40-150mm f2.8 doesn't deliver the same shallow depth of field and creamy bokeh you'll get from a prime like the 45mm f1.8.
http://cameralabs.com/reviews/Olympus_M_Zuiko_Digital_40-150mm_f2-8/
If you already are an Olympus user, then you shouldn’t wait any longer. Go out and get this lens and if you don’t have the 12-40mm lens purchase that one too along with the Tele-extender. The image quality, the build and overall experience of using these lenses won’t disappoint you.
http://www.luminous-landscape.com/essays/lenses/the_olympus_40___150mm_lens.shtml
The 40-150mm f/2.8 is billed as a pro lens, and as such, focus speed is important. For the most part, I found the 40-150mm f/2.8 to focus extremely quietly, quickly and accurately. In good light, focus was nearly instantaneous, and accuracy was outstanding.
The lens seems to be optimized for the portrait range distances, and in this range, the lens is incredibly sharp from f/2.8 throughout the entire focal range. Center sharpness is brilliant and even edge and corner sharpness is very good at f/2.8, and improves to excellent when stopped down just a smidge.
http://admiringlight.com/blog/review-olympus-m-zuiko-40-150mm-f2-8-pro/
It's hard to fault the Olympus 45-150mm f2.8 on quality grounds. It produces sharp detail with good contrast throughout the focal range. This is a lens that you can quite happily shoot wide open without having to worry about edge definition, aberrations or distortion.
http://cameralabs.com/reviews/Olympus_M_Zuiko_Digital_40-150mm_f2-8/
Tried the lens out for video on GH4.
Will lose focus when zooming in and out sadly.
Just for fun, will test quality against a Canon FD 80-200mm F4 L lens with Metabones Speedbooster FD-MFT (approx. 57-142mm f2.8) and post results when I get the lens back to the office.
It isn’t just optical quality that gives this lens professional credentials though. Fast, smooth autofocussing is critical for capturing fast-moving distant subjects, so Olympus has equipped the 40-150mm f/2.8 with its excellent dual VCM (voice coil motor) autofocus system. This eliminates gears and corresponding friction, making autofocussing impressively smooth and rapid.
http://www.photographyblog.com/previews/olympus_m_zuiko_digital_ed_40_150mm_f_2_8_pro_photos/
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