Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2019-05-24 09:01:02
UA_SEARCH_BOT_null @ 54.234.227.202

Are More Pixels Better?

More pixels are always better.

With equivalent sensor design, more pixels will always produce better image quality, even if on a per-pixel basis the quality is not quite as good. That’s because downsampling the higher resolution camera, various artifacts are reduced: noise, demosaicing nasties, aliasing and other effects at the limits of sensor resolution.

The foregoing does not mean that any camera B with 30 megapixels will always be better than any Camera A with 20 megapixels; the sensor technology must be fairly matched.

The best way to understand this is to downsample a higher resolution camera to the resolution of another lower resolution one, choosing cameras that have similar sensor technology of course.

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.

   
Actual pixels: D3x (left), D3 (right)

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.