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EXCERPT page containing first few paragraphs. 2023-01-28 05:32:46

Canon 5DS R

Example: Getting Close to 50 Megapixels in Real Photography (Lundy Beaver Pond, Canon 5Ds R)

This example complements the Spotted Boulder example and also shows how far more real-world detail can be obtained with focus stacking in the case of a very high resolution DSLR. Please see the general discussion on that page.

This image all but leaps off the page on an iMac 5K or better.

Example — Lundy beaver pond

One might consider a tilt lens for such a scene. But as is often the case, vertical elements cut through the potential plane of focus, which really needs to run along the plane of the pond. That’s a problem with the brush and foreground grasses. Tilt might have been acceptable at f/9, but it might also have required f/13. But here, a zoom lens was used for a perfect “fit” short of wading into the pond.

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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.

f9 @ 1/20 sec focus stack 2 frames, ISO 100; 2016-10-28 16:29:43
Canon EOS 5DS R + Canon EF 16-35mm f/2.8L III @ 25mm

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