EXCERPT page containing first few paragraphs. 2022-01-23 01:45:25
UA_SEARCH_BOT_null @ 126.96.36.199
This page looks at the character of the noise with the Sony A7R III, pointing out what has been the most troublesome aspect of Sony file quality with the A7R, A7R II and now the A7R III, even if sharpening is dialed back to try to avoid it.
The behavior shown here is in full sunlight with an ideal ETTR exposure with the A7R III at ISO 100, conditions which are thus commonplace in terms of lighting and ISO.
This is a classic case of dynamic range limitations, meaning the true usable range of brightness a camera can handle (including the required sharpening and any other adjustments!), but here are shown problems in bright silver areas and in the sky. Sharpening has to be backed off to avoid accentuating the noise, but doing so leaves a dull-looking image. It is my view that lab tests evaluating noise fail to capture this behavior in any meaningful way.
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.