Sharpness was sometimes an issue at extreme magnifications, but not due to the sharpness of the lens – instead, it was due to the depth of field. At high magnifications, depth of field is always an issue because it’s inherently narrow. You’ll need to stop down to apertures like f/8, f/11, and f/16, which have increasingly more issues with diffraction. All of this will sound familiar if you’re a macro photographer, because it’s true of every macro lens. The 90mm F3.5 Macro IS PRO lens is equipped with an in-lens image stabilization system. When combined with a compatible camera body, 5-axis sync-IS is supported, delivering up to 7 steps of shutter speed compensation. Rated IP53 against dust and moisture, the OM Digital 90mm macro should also be supremely well protected from the elements, potentially making it a fantastic option for close-up photographers working in the field. Insect and nature photographers in particular might benefit from its tough-built, image-stabilized design. When can I buy an OM Digital’s new lens & what will it cost? The image stabilization mechanism in the lens and the camera body work together to achieve 5-axis sync IS, which delivers up to 7 steps of shutter speed compensation. Furthermore, the ED 90mm F3.5 Macro IS PRO features an acceleration sensor on the lens that precisely detects motion blur for correction of shift, which has a significant impact on macro shooting. No need to bring a tripod, the powerful image stabilization functionality allows the user the flexibility, even for handheld high-resolution photos. IP53 splash & dust proof capabilities with a fluorine coating for unbeatable all-weather performance

The lenstip test actually shows a minor difference. Peak resolution without the TC is 76 lpmm, so 38 lpmm after a 2x crop vs 43 lpmm achieved with the 2x TC. But that is on a 16MP body and ignores the 1.4x. Images captured with the PEN-F's Monochrome or Color Profile Control can be loaded into the Olympus Digital Camera Updater* so the profile control settings can be saved to your PEN-F body as a custom setting. Sharing your PEN-F's profile control settings has never been easier! Want a new Macro Lens? Look no further! The OM System M.Zuiko ED 90mm F3.5 Macro IS PRO Lens, designed for Micro Four Thirds System offers up to 2x magnification. Ultra-high magnification shooting and more magnification than on any lens we’ve ever made. Increase that magnification up to 4x2 with the addition of the optional MC-20 2x teleconverter (sold separately) to capture an unseen world, invisible to the naked eye. Lenstip does sometimes test teleconverters, for example on the M43 Panasonic 200mm F2.8 they tested the 1.4x I said I could see the advantages of an 180mm, I never said it was necessary. I even stated it wasn’t necessarily for myself and a specialist application. That doesn’t mean I cannot see the advantage. Yes you can make great images with shorter focal, I never said you couldn’t. I have only implied that choice is good and this choice is not available on FF. It’s available on MFT due to the inherent benefits of a crop sensor.The f3.5 isn’t going to make this lens handle double-duty for portrait work. But, macro work typically requires a narrower aperture because getting in close reduces the depth of field to oblivion. So for macro shooters, I don’t think the f3.5 will be a deal-breaker. Stabilization and a Pro designation seal the deal Me looking at all those great macro shots from FF and APS-C I do not see any problemm shooting macro with shorter FL” I will be very interested to know if this 90mm lens presents some vignetting (hard, soft or null) as tube lens in a combination with microscope objective like Mitutoyo X10. The 90mm probably is a great lens. The marketing around the TC is what is questionable. Not that is a capable macro lens

I have seen a couple of reviewers comment that it is a shame that the lens was released in the winter in North America. We will have our lenses in March when the flowers start popping up and the insects come out, so it is perfect timing. And for us ambassadors that were trying out the lens in the colder months we just needed to get a little more creative and find some flowering trees, visit a magical butterfly conservancy, find some colorful frogs, etc. Even combined with a pro-level body such as the OM-1, it’s a relatively light weight combination for carrying around all day. It balances quite well with those larger Micro Four Thirds bodies, such as the Olympus OM-1 we have been using it with for the purposes of this review. You might find if you have smaller Micro Four Thirds bodies it’s a little bit front heavy, so that’s perhaps worth considering.Ross the Fiddler: That's never a good argument. We live in an informed world (even if the camera world will be less well informed when dpreview is switched off). Your observation is possible because those who would be disappointed are not in that group, because they know they would be and therefore don't buy it in the first place. ;-)