EXCERPT page containing first few paragraphs. 2019-09-23 09:21:24
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The Olympus SHG 7-14mm f/4 ED is substantially larger and heavier and costs about twice as much as the Panasonic 7-14mm f/4 ASPH. And it requires the MMF-3 lens adapter for use on a Micro Four Thirds camera body.
Of note was flaky behavior of the Panasonic 7-14mm on the Olympus OM-D E-M5: the aperture kept resetting to a different value (e.g., from f/4 to f/11 in manual mode). This behavior settled down after a minute or two, but it does raise the issue of cross-system compatibility.
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
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