Minimum focus distance / max magnificationįor a lens of its focal range and build, the Olympus 8-25mm F4.0 is very compact and lightweight.
It also lacks filter threads, has significantly weaker macro performance and uses a stepper motor to drive AF, but those shortcomings are mitigated by a brighter F2.8 maximum aperture, which will also yield greater opportunities for softly-blurred backgrounds. | Olympus E-M1 IIIįinally, the Olympus M.Zuiko Digital ED 7-14mm F2.8 Pro is about 17mm (0.7") longer, weighs almost 30% more, and costs $300 more than the 8-25mm. But it's the only one to lack weather sealing, and also has the weakest macro performance of the bunch.
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It's also the lightest of the group, tipping the scales at 300g (10.6oz), a full 27% less than the Olympus. And you'll save a worthwhile $200 in terms of list pricing. If size and weight are your primary concern and you can live with its lesser telephoto reach, the Panasonic Lumix G Vario 7-14mm F4 ASPH matches the Olympus' maximum aperture while being 5-7mm (0.2") shorter and less wide. And once again, the 8-25mm F4.0 Pro offers noticeably better macro specifications. It also takes an even smaller, more affordable 67mm filter size, but opts for a stepper motor-based autofocus drive. It's just 3.6mm (0.1") shorter, but weighs almost 25% less despite boasting a significantly brighter F2.8 maximum aperture at the wider end of its zoom range. | Olympus E-M1 IIIĪs for the Leica DG Vario-Elmarit 8-18mm F2.8-4.0 ASPH, the size is near-identical, and so is its $1099.99 pricetag. And while we've not yet fully tested the Leica's performance, its stepping autofocus motor likely won't be quite as swift as the extremely fast linear motor of the Olympus lens. The Olympus 8-25mm F4.0 also accepts slightly smaller 72mm filters, rather than the 77mm filters of the Leica lens.
However, the Olympus' lens bests it not just in terms of wide-angle coverage, but also in its macro capabilities. | Olympus E-M1 IIIīut for that, you get a much brighter F1.7 maximum aperture across its zoom range, which along with a nine-bladed aperture should yield more possibilities for (and more attractive) bokeh. It's almost 4cm (1.5") longer, has about a 1cm (0.5") greater diameter, weighs two-thirds more and costs an additional $700 more than the 8-25mm F4.0. Of these, the closest in terms of its focal range is the Leica DG Vario-Summilux 10-25mm F1.7 ASPH, a 2.25x zoom that's much larger, heavier and more expensive. Less-direct rivals include the Panasonic 7-14mm F4 and Olympus' own 7-14mm F2.8 Pro. In terms of its focal range, the nearest alternatives are either Panasonic's Leica-branded 8-18mm F2.8-4.0 or 10-25mm F1.7. The Olympus 8-25mm F4.0 Pro is an unusually versatile lens with no direct competitors within the Micro Four Thirds system.
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