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Sony A7R

Examples of Blur by Shutter Vibration / Shutter Shake

This page shows examples of shutter vibration / shutter shake from several cameras.

Cameras lacking an electronic first curtain shutter (EFC shutter) option are prone to blur problems from the shutter itself, even if mirror lockup is used. The blur can be severe.

Sony A7R Examples

The 36-megapixel Sony A7R is a full frame camera with a powerful shutter capable of 1/8000 sec top speed. Its shutter can seriously damage image quality even at a 55mm focal length though damage tends to occur more when the camera is used vertically (portrait orientation) and with longer focal lengths (180mm on up).

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  • 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.

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