Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2023-12-01 23:54:07

45-megapixel Nikon D850

Automated Focus Stepping for Stacking (Nikon D850 in Particular)

It took a while for the realization to set in, but in my November 2017 blog I postulated that automated focus stepping for focus stacking with the Nikon D850* was the most important advance since Live View. Nikon has done it 'primitive' way to start (no way to set a focusing endpoint and spacing maybe not quite tight enough with super-wides), but it is a huge step forward (and in spite of very poor documentation).

* Nikon erroneously calls focus stepping “Focus shift shooting, a very poor choice of terminology in direct conflict with the well established optical term of focus shift, an entirely different optical design matter..

Article continues for subscribers...

Diglloyd Making Sharp Images is by yearly subscription. Subscribe now for about 13 cents a day ($50/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!

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.

Variants RGB,BW available in full article
Grayish Dead Pine to View of Mt Conness Sub Peak
f9 @ 1/50 sec focus stack 6 frames, ISO 31; 2017-11-10 13:51:04
NIKON D850 + Zeiss Milvus 35mm f/1.4

[low-res image for bot]
Grayish dead tree view to Mt Conness
f2.5 @ 1/10 sec focus stack 15 frames, ISO 31; 2017-11-08 17:21:17
NIKON D850 + Sigma 14mm f/1.8 DG HSM Art

[low-res image for bot]

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2022 diglloyd Inc, all rights reserved.