The Olympus 40-150mm lens is not only stunningly sharp by zoom lens standards, but also sharp by prime lens standards. And this is wide open at ƒ/2.8 at practically every other focal length. 40-150 lens is very sharp wide open at all focal lengths.
http://slrgear.com/reviews/showproduct.php/product/1741/cat/15
As the OIS in Panasonic's 35-100mm lens does more damage than good (for handheld video shots), this Olympus lens looks like a good alternative. Same price, longer reach and probably much better build quality. If I have to shoot on sticks, the additional weight and bulk of the Oly 40-150 doesn't bother me.
The 40-150mm is a wonderful lens. Along with having great optical performance and a versatile zoom range, it is also an important step forward for a system that is becoming more and more mature and complete with solutions that can suit amateurs, enthusiasts and professional photographers.
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/
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'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/
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/
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
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/
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.
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?
Sadly no, it does not hold focus throughout zoom. Maybe because of the dual VCM motors?
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
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