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Zeiss Batis 40mm f/2
Zeiss Batis 40mm f/2

MTF for Zeiss Batis 40mm f/2

MTF wide open at f/2 is very good with mild field curvature as shown by the “wave” in the 40 lp/mm lines (bottom pair). It appears that Zeiss has sought relative uniform MTF from center to corners, possibly as a tradeoff for peak MTF.

Stopping down to f/4, MTF rises to high levels, but like other Batis lenses, it does not go beyond about 76% for 40 lp/mm. And yet several Zeiss Loxia lenses achieve levels well over 80% (see MTF for the Zeiss Loxia 25mm f/2.4 at f/2.4—higher at f/2.4 than f/4 for the Batis 40/2).

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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.

Zeiss Batis 40mm f/2 optical construction
Aperture series 2,4 available in full article
Zeiss Batis 40mm f/2 optical construction

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