Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2019-05-23 23:08:05
UA_SEARCH_BOT_null @ 3.80.223.123

Sony RX100

RX100 Built-in Distortion Correction for JPEG

Like many compact cameras, the JPEG output of the Sony RX100 is corrected for optical distortion, as well as lateral chromatic aberration, and possibly other optical shortcomings (Sony does not say).

The RX100 also has certain tonal range compensations (shadows/highlights); I set the camera to enable DRO/Auto HDR to D-Range Opt.

Shooting RAW (ARW) corrects neither the distortion nor the lateral chromatic aberration. It’s regrettable that lateral chromatic aberration is not corrected directly in the RAW, but there are good reasons not to correct distortion in RAW.

Micro contrast and distortion correction

My approach to distortion correction tends to be one of avoidance; it has the potential to reduce the micro contrast of fine detail in areas that have to be “stretched” to correct the distortion, e.g. one source pixel has to cover 1.1 or 1.2 or 1.3 pixels of area once corrected. In camera correction potentially can do the very best job at minimizing this loss, since the camera designer knows the characteristics of the lens precisely, and can perhaps apply specialized processing as well.

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 JPEG from camera, TIF from RAW (Raw Developer 1.9.5) available in full article
JPEG vs RAW (ARW), 28mm (10.4mm), f/6.3

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.