Reduction of lens aberration

Conventional shooting practice

In photographic circles, there is a long-held rule of thumb that you should stop down slightly from maximum aperture when taking photos with a shallow depth of field for a blurry effect, or for scenes requiring a fast shutter speed. This is done to prevent a degradation of resolution in the focal area. The technique does not represent the optimal intention of the photographer, rather it is a compromise based on experience.
Produce images that are at least close to the original intention by accepting a tradeoff between photographic expression and image quality. This is a technique that is commonly used by experienced photographers.

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Shooting practice with Digital Lens Optimizer

The rule about avoiding maximum aperture no longer applies when Digital Lens Optimizer is used. Because the optical characteristics will be optimized, high image sharpness with minimal aberrations can be achieved even with maximum aperture.
Whether using a fast shutter speed to capture a special moment, or a shallow depth of field for a blurry effect, the desired aperture can be chosen freely. A wider aperture also allows lowering the ISO speed for even better image quality.

<Effect of Digital Lens Optimizer at maximum aperture>

Taken at f/2.8 | Digital Lens Optimizer ON

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