EXCERPT page containing first few paragraphs. 2021-10-21 02:16:48
UA_SEARCH_BOT_null @ 126.96.36.199
These are practical examples of the lens performance: shifted fully in the long direction and shot at f/11 of f/16, is the performance good enough to support making stitched panoramic images?
These examples represent the best results I was able to obtain; I tested several apertures and f/11 seems to be best (or f/16 with more sharpening).
As stitched and after the necessary slight cropping, the result is a 60-megapixel having a 2.5:1 aspect ratio (approx 12300 X 4870). The shift is not perfectly aligned; some slight staircasing happens as part of the shift movement (but this happens on nearly all shift lenses).
Images can also be stitched by shifting the lens in the short direction which should remain in the higher performance area of the lens.
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.