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Vignetting — dark corners

Vignetting

Vignetting (field illlumination is often given too much concern: not only can software correction easily deal with it, vignetting can be an attractive quality. The vignetting of some fast lenses can be useful for directing attention to the subject (near center) and/or as a natural neutral density filter for peripheral areas.

On the other hand, if the goal is frequent handheld shooting at f/1.4 in dim conditions, a lens with less vignetting is effectively a “faster” lens. So it comes down to preferences and goals.

Vignetting: optical, natural, mechanical, digital sensor

There are three types of vignetting related to the lens, plus vignetting and color shading from digital sensors.

Optical vignetting

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  • Optical aberrations: what they are, what they look like, and what to do about them.
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Intrigued? See Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges, or (one topic of many) field curvature.

Actual pictures of lens diaphragm at f/2, f/2.8, f/4, f/5.6, f/8
Zeiss 100mm f/2 Makro-Planar

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