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50-megapixel Canon 5DS R
Canon TS-E 135mm f/4L Macro

Aperture Series with Tilt: Rushing Downstream

This aperture series evaluates optical performance on an outdoor scene using tilt to make a sharp scene near to far along a rushing creek.

In some lucky cases, the subject matter fits into a plane or something close to a plane. In these cases, shooting wide open at f/4 with tilt or swing can yield sharpness near to far for the desired area.

With a 135mm lens, where would one focus for this scene? No matter what, most of the water would be blurred until stopped well down, and there is just no way even at f/16 to make sharp water from the bottom of the scene to the bend in the creek near top right. Moreover water blurred by motion is quite beautiful, but it still has motion-blur detail/character—but if it is blurred by being out of focus, the effect is not at all the same.

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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.

Aperture series 4,6.3,9,13,16 available in full article

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