EXCERPT page containing first few paragraphs. 2023-03-25 03:40:49
UA_SEARCH_BOT_null @ 22.214.171.124
Aperture Series @ 29mm: Backlit Sprinter on White Mountain Road
This medium range aperture series at 29mm shows why it is important to account for the field curvature at 24mm and at 40mm, namely, that the usual assumptions about focus placement need to be substantially modified to obtain full sharpness. A discussion is included of how to to do and thus reliably obtain higher total sharpness for any obliquely-shot scene like this.
A pixel shift series was shot but not used due to serious checkerboarding issues. Why can’t Pentax do on-the-fly raw emission of a separate file with pixel shift artifacts fixed?
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 only 68 cents a day ($249.95)!
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.