Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2019-09-23 09:18:29
UA_SEARCH_BOT_null @ 34.204.194.190

Zeiss Touit 32mm f/1.8 Distagon

Distortion Correction in JPEG vs RAW (Sony NEX-7)

The Zeiss Touit 32mm f/1.8 Distagon has distortion that is generally in excess of that seen with a 50mm lens for a full-frame DSLR, but it is of an easily-correctable barrel type.

An Adobe Camera Raw lens profile was not available at the time this test was done, however manual distortion correction is available. With Fuji X cameras, distortion is always performed, even in raw format (at least at the time this was written).

The camera was shot in RAW + JPEG Fine mode, so there was one exposure for this pair, not two separate exposures.

Contrast and white balance

The camera-generated JPEG had a different tonal curve than that delivered from RAW by Adobe Camera Raw; some adjustments were made to make the raw-derived image look more similar to the JPEG. The exposure was also compromised (ETTR not used), so that the JPEG would come out without being too bright.

Article continues for subscribers...

Diglloyd Guide to Mirrorless is by yearly subscription. Subscribe now for about 25 cents a day ($90/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!

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.

Variants uncorrected, corrected, jpeg available in full article

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.