Olympus M.Zuiko Digital ED 40-150 mm F2.8 PRO Lens, Telephoto Zoom, Suitable for All MFT Cameras (Olympus OM-D & PEN Models, Panasonic G Series), Black

Product Information

On the other hand, vignetting and linear distortion are just minimal, period. Minimal as in generally “ignorable.” I found the vignetting so low (perhaps a third of a stop at all focal lengths in the corners) that I had to retest and look at the results several times to make sure I wasn’t missing something. Vignetting is totally ignorable by f/4.

Finally, there is the MC-14 1.4x teleconverter, the first developed for MFT lenses. It is relatively flat (14.7mm) so using it won’t affect the size of your system. It features a very similar build quality to the lens with an all-metal finish. The front lens protrudes from the converter, a design that will limit its compatibility to the Olympus 40-150mm and upcoming 300mm f/4. It won’t work with other MFT telephoto lenses. The OM System 40-150mm f4 Pro is capable of focusing as close as 27 inches from the front of the lens. At 150mm, that’s about a .41x macro on a 35mm equivalent. It gets in pretty close for atelephoto lens. In addition, the Olympus M.Zuiko Digital ED 40-150mm lens has a so-called L-Fn button, which allows users to temporarily suspend continuous auto focus when something suddenly comes between the lens and your intended subject. This is mostly useful when shooting a movie clip with C-AF enabled, but the feature can also be used when photographing action.Place both of the telephoto zooms side-by-side and there’s significant physical differences to literally weigh-up. The Leica is noticeably more compact, shorter and lighter. I could squeeze it into my bag standing up whereas the Olympus always had to lay down and occupied much more space. That said, the Olympus enjoys the benefits of internal zooming (less chance of dust or moisture entering the barrel) and a tripod foot for greater stability (which also sports an Arca Swiss dovetail base). Both lenses may feature lens hoods that can fold over the end of the barrel for transportation, but the Leica hood must be reversed and re-mounted, whereas the Olympus hood simply pulls-out. There’s no doubt the Olympus feels more confident and has more physical features (including a programmable function button for Olympus bodies), but again it’s much larger. The M.ZUIKO Digital ED 40-150mm f/2.8 is designed to meet the expectations of serious Micro Four Thirds users that demand a long zoom and the type of ruggedness you’d expect from a lens that comes with a four-figure price tag. For me though, I will be keeping the 40-150 + MC-20 combination even though it's more difficult to get sharp shots, requires more post processing, and is optically inferior. Why would I do this?

The constant f2.8 aperture is maintained throughout the focal range, a very useful feature and not just for shooting in low light. The physical aperture diaphragm construction is composed of 9 blades which produce a circular shaped aperture that should result in pretty circular blob highlights for out of focus elements. At the other end of the range the minimum aperture is f22.There isn’t much else to say in conclusion except that which I said at the start: 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. E-M1, 1/100, f/ 2.8, ISO 3200 With the Olympus 40-150mm F2.8 Pro you can capture the most intricate details of wildlife without disturbing them – producing natural photographs with a shallow depth of field that you can be proud of.