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Example: Shallow Stack for Sharpness in Narrow Zone (Blue Engine on Green Machine)

This close-range shot is difficult to make sharp even at f/13 because the projecting surfaces are just too far from the gauges area. The engine and its various parts will be persuasive only if crisp and even if shot at f/13 of f/16 for depth of field, the fine metallic and paint texture would be significantly degraded by diffraction. By using f/9, most of the brilliance can be retained.

Thus this example is a “shallow stack” siutation where the goal is to make a sharp image across the front area of the engine and its parts. Sharpening the background would not only have required more frames, it would have made a less attractive image.

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Diglloyd Making Sharp Images articulates years of best practices and how-to, painstakingly learned over a decade of camera and lens evaluation.

Save yourself those years of trial and error by jump-starting your photographic technical execution when making the image. The best lens or camera is handicapped if the photographer fails to master perfect shot discipline. High-resolution digital cameras are unforgiving of errors, at least if one wants the best possible results.

  • Eases into photographic challenges with an introductory section.
  • Covers aspects of digital sensor technology that relate to getting the best image quality.
  • Technique section discusses every aspect of making a sharp image handheld or on a tripod.
  • Depth of field and how to bypass depth of field limitations via focus stacking.
  • Optical aberrations: what they are, what they look like, and what to do about them.
  • MTF, field curvature, focus shift: insight into the limitations of lab tests and why imaging performance is far more complex than it appears.
  • Optical aberrations: what they are, what they look like, and what to do about them.
  • How to test a lens for a “bad sample”.

Intrigued? See Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges, or (one topic of many) field curvature.

Blue Engine on the Green Machine
Focus-stacked image, 3 frames
f9 @ 1/200 sec, ISO 64; 2016-06-07 13:37:33
NIKON D810 + Zeiss Otus 28mm f/1.4 APO-Distagon

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