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Zeiss Loxia 85mm f/2.4 Sonnar

MTF for Zeiss Loxia 85mm f/2.4 Sonnar from f/2.4 to f/16

MTF wide open at f/2.4 already exceeds many lenses at their best aperture.

There is little change from f/2.4 to f/2.8 (only 1/3 of a stop);

As field shots confirm, f/4 bumps up quality nicely and f/5.6 is outstanding, although the Otus 85/1.4 APO-Planar is better (the Otus 85/1.4 having no peers being, the best lens on any platform). However, the Loxia 85/2.4 looks to have a flatter field (less field curvature), a behavior also confirmed in field shots.

Field shots show worthwhile outer-zone improvements in stopping down to f/5.6, which delivers world-class MTF that flatlines across the central 3/4 of the frame, declining slightly as the edges are approached. It is a superbly consistent performance that f/8 begins to degrade from diffraction.

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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.

  • Make better images by learning how to get the best results right away. For example, the best way to set up your Sony camera.
  • Save money by choosing the right lens for your needs the first time, particularly with the numerous lenses available for Sony.
  • Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning—best practices and how-to and processing parameters are discussed and shown.
  • Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to 28 megapixels filling up to 5K display, plus large crops.
  • Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
  • Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
  • Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.

Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Sony.

Aperture series 2.4,2.8,4,5.6,8,11,16 available in full article
MTF for Zeiss Loxia 85mm f/2.4 Sonnar from f/2.4 to f/16

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