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Sony NEX-7

Zeiss ZM 35/2 Aperture Series (Radio Towers)

This page examines the optical performance of the Zeiss ZM 35mm f/2 Biogon on the Sony NEX-7.

The 35/2 Biogon is a very sharp lens, but one cannot assume that it will perform to its optical best because of ray angle interaction with sensor cover glass.

Test scene, Jan 7, 2012

A beautiful January day in the San Francisco Bay Area. I rode my Moots MootoX YBB 29er mountain bike up here with the camera and 5 lenses in a small hip-pack— something not possible with a large DSLR. The whole kit with the hip pack weighed just under 5 pounds, a compelling argument for the Sony NEX-7 form factor.

Shots were taken handheld at high shutter speeds (a bike ride is required to get here, and I had no tripod, besides it was very windy and a tripod can vibrate). To align them, a very slight cropping was done. Focusing was done just once (of course), at f/2.8.

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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 full camera resolution, 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, 2.8, 4, 5.6, 8 available in full article
Sony NEX-7 + Zeiss ZM 35mm f/2 Biogon

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