All images in this series shot with the Olympus OM-D and ZD 60/2.8 macro.
There’s nothing that says you can’t use macro lenses for non-macro purposes; the old myth of the optics being poorer at longer distances is just that: a myth. In fact, macro lenses tend to perform better than most standard lenses even at long distances because they are so well corrected in the first place. There are two drawbacks: firstly, the apertures tend to be slower, which isn’t so good for achieving subject separation and is solely a physical property of the focal length and aperture combination of the lens; secondly, the focus throw tends to be shorter.
This is a both good and bad – good because if an autofocus lens, the focusing elements don’t have to move as far since the lens must also be able to provide sufficient effective extension to focus at macro distances, bad because it means that if you have a manual focus lens – like the ZF.2 2/50 Makro-Planar I use – you have very, very little travel between mid distances – say 2-3m or so – and infinity, which can make precise focusing very difficult. For manual focus lenses, using the camera’s built-in rangefinder/ focus confirmation dot simply isn’t precise enough as the dot stays lit for some not inconsiderable displacement of the focusing barrel*. For autofocus lenses, the camera/ lens combination may not have the ability to consistently move the elements by the precise displacements required for very small changes in focusing distance – this is especially apparent with older screwdriver-focused lenses like the Nikon 60/2.8 D. Newer coreless motor lenses (AFS, EFS, M4/3 lenses etc) generally don’t have problems as there is very little backlash in the focusing system.
*Do this simple test to see what I mean: shoot the same subject, at the same distance, with the cameras on a tripod and your desired test lens attached. Using the viewdfinder or EVF, try to focus the lens/ camera manually from both infinity and near limit, stopping just once the focus confirm indicator lights. Do this with the aperture wide open, otherwise other focus errors like backfocusing or mirror misalignment can’t be identified and compensated for. Shoot the same frame again, focusing with live view to use as a comparison image. What you’ll probably see – is that neither image using focus confirm is as sharp as the live view image. This effect is even worse for telephotos, because of the depth of field characteristics of the focal length. The shorter the focus throw, the worse this problem becomes.
Potential focusing issues notwithstanding, so long as you have enough light for a sufficiently high shutter speed to avoid camera shake, the results are generally excellent. Specifically in the case of the ZD60, (my full review at macro distances is here) I’m pleased to report that the lens’ already excellent optical properties do not change at all at longer distances. In fact, the one niggling flaw I saw at close range is mostly gone – I’m not seeing any bright edges to out of focus highlights. Both foreground and background bokeh is smooth and non-distracting. Subjects fall nicely in planes and are separated in a manner that has plenty of 3D pop; this is characteristic of a lens with excellent microcontrast.
Focusing is not an issue at all, and is just as fast as the ZD 45/1.8 providing you have the 4-way limiter switch in the right position. The one minor issue I did find was that the lens with hood is not exactly inconspicuous (and nowhere as compact as the 45), being nearly 15cm long with everything in place. Relatively small by DSLR standards, but probably not exactly what M4/3 users have in mind.. Personally, I find this combination of interest not because I’d take it out on dedicated street photography/ travel expeditions, but because I frequently carry the OM-D system either as a backup camera (or as a primary for assignments that don’t require the D800E’s resolution) – and the ability for a lens to do double-duty means one less thing to carry, break, fail or potentially lose. It’s always nice to have options. MT
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