EXCERPT page containing first few paragraphs. 2021-09-28 04:47:12
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The EFC shutter (electronic first curtain) feature was enabled, for zero vibration from the camera shutter.
Following the short focal length examples (previous pages), a challenge came to mind: the Leica 180mm f/2.8 APO-Elmarit-R had been a nettlesome failure in field usage on DSLRs for years (on both Canon and Nikon). If not for missed focus (optical viewfinders with manual focus are a cruel joke at 180mm), then shutter issues and/or mirror slap. Very high failure rates.
For that matter, the 24-megapixel Leica M240 has problematic shutter vibration, rendering the 180/2.8 all but useless with the Leica R-Adapter-M, no matter how sturdy the tripod (100% failure rate (blur) at shutter speeds below ~1/125 second).
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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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