EXCERPT page containing first few paragraphs. 2024-05-09 11:40:05
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 3.138.114.38
For full access, subscribe here. Or click title to login. 
Sony A7R V: ISO 100 to 25600 with Adobe AI Denoise 10,50
This page looks at noise from ISO 100 to ISO 25600, and what the AI Denoise feature of Adobe Camera Raw can do about it, and how it affects image detail.
Images presented at full 60MP resolution but also at 30MP and 15MP as a proxy to give a good idea of noise levels that would be perceived at different enlargments sizes.
Note: the Sony A7R V is a dual-gain sensor, meaning that its hardware behavior is different depending on ISO—not ISO invariant across the entire ISO range, but ISO invariant within two ranges. ISO values up to 250 are one gain, and ISO values of 320 and higher are another. Put simply, if you need an effective ISO of 320 or higher, use set the camera to ISO 320 or higher.
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 about 75 cents a day!
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.
