Olympus M.Zuiko Digital ED 40-150 mm F4-5.6 Lens, Telephoto Zoom, Suitable for All MFT Cameras (Olympus OM-D & PEN Models, Panasonic G Series), Black

Product Information

The shot below demonstrates how close you can get to the subject - in this case, a Compact Flash memory card. But, while many manufacturers will label a lens as weather-sealed but not say exactly how much weather is too much, OM System has added an official IP rating to this lens. As for lens construction, the Olympus 40-150mm F4 Pro features 15 elements in 9 groups, including 2 ED lenses, 1 Super ED lens, and 1 HR lens. Furthermore, the Olympus 40-150mm F4 Pro lacks ergonomic luxuries such as a manual focus switch/clutch and a customizable L-Fn button.

The corners are slightly softer than the center, but still acceptable if you want to place the subject on the edge. Pro has a L-fn function button on the barrel that can be assigned to one of a number of functions from the custom menu on the camera.

Fully stopped-down performance isn't great, but not as terrible as we've seen in some other lenses, probably because the lens is limited to ƒ/22 at all focal lengths. Stopping down at 40mm produces an slight improvement in sharpness, getting almost tack-sharp if not for the right side. But unlike the Tamron, the Olympus’s zoom ring is much too tight to roll with my outstretched index finger.

It makes sense within the Olympus Micro Four thirds lens range though, as it picks up where the first Pro lens – the M. Thanks to its dual autofocus motors, the Olympus 40-150mm focus feels almost instant with very little hunting.The Olympus 40-150mm F4 Pro, by OM Systems, is a lightweight telephoto lens for Micro Four Thirds Camera such as the OM-1. The crops also reveal the blobs to cleaner shapes, whereas the 40-150mm blobs show some visible onion-ringing. Some would say magnification for some sharpnesss loss is well worth it; others such as Photozone in their MC-14 MFT measuring say use the MC-14 teleconverter as a last resort ( http://www. Pro’s image quality is limited only by your ability to acquire focus and set a sufficiently fast shutter speed.

which measures 67mm in diameter 100mm in length and weighs 360g, significantly smaller and around half the weight of the Olympus. Thanks to its clutch mechanism, you can instantaneously switch from auto to manual focus (like the 12-40mm f/2,8 and 12mm f/2). As many of you will know over the last couple of years I’ve turned exclusively to Micro 4/3 cameras and lenses which I now use for all of my professional and personal work (bar the very rare occasions when I’m part of an event with Canon). Pro is a weather sealed zoom lens with a dedicated Micro Four Thirds mount that is made of metal, with a rubber seal around the mount. aperture, you can blur those backgrounds to goo while soaking up enough light to keep those ISO’s low.

Now with two lenses, Olympus can take you from an equivalent of 24mm all the way to 300mm with a constant f2.