EXCERPT page containing first few paragraphs. 2024-04-19 15:00:20
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 18.190.153.51
For full access, subscribe here. Or click title to login. 
Noise: 15 Seconds, Near-Optimal Exposure (Rock Creek, Late Dusk)
Update 16 Jan 2018: Nikon has issued a firmware updater the is claimed to fix the serious image quality damage of long exposure noise reduction.
Here the Nikon D850 is shot with a 15 second exposure at late dusk, with a nearly optimal exposure (see the RawDigger histograms).
How does the D850 hold up compared to the gross underexposure in Noise: 30 Seconds, 3-stop Underexposure (Rock Creek, Late Dusk)?
Rock Creek, late dusk
Adobe Camera Raw 9.12.1.790. View ACR Settings. D850 long exposure noise reduction enbled, which apparently INCREASES noise very badly with the Nikon D850 (some kind of bug?).
Article continues for subscribers...
Diglloyd Advanced DSLR is by yearly subscription. Subscribe now for about 16 cents a day ($60/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for about 75 cents a day!
Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.
Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.
- Make better images by learning how to get the best results right away.
- Save money by choosing the right lens for your needs the first time, particularly some of the new Sigma Art lenses vs Nikon and Canon.
- Workflow discusses image organization, raw conversion and post processing. Many examples show processing parameters for direct insight into how the image was converted.
- Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to full camera resolution, plus large crops [past 2 years or so].
- 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 Nikon or on Canon or on Pentax.
NIKON D850 + Zeiss Milvus 18mm f/2.8
[low-res image for bot]