spherical aberration

"We agree that there is a spherical aberration in the telescope system.

"Positive" spherical aberration means peripheral rays are bent too much.

He would be left, however, with spherical aberration which is just as damaging to image sharpness.

They minimize spherical aberration and can detect the direction of incoming light.

At wide apertures, spherical aberration becomes more significant and must be corrected.

The use of auto-focus is further undermined by the spherical aberration in the lens.

For simple designs one can sometimes calculate parameters that minimize spherical aberration.

The front lens is well corrected for spherical aberrations but introduces coma.

If the shape were that of a toroid, the mirror would exhibit spherical aberration.

This is done by rotating elements that are inside of the lens to create deliberate spherical aberration.

If the mirror is spherical, it will suffer from spherical aberration.

There are enough degrees of freedom to correct for spherical aberration, coma, and field curvature.

In theory, there are many ways the flaw, a spherical aberration, could have been produced in making the mirror.

It had almost no flaws, except for a bit of oblique spherical aberration, which could lower peripheral contrast.

The image produced by any lens is therefore somewhat blurry around the edges (spherical aberration).

The effect of spherical aberration increases as the fourth power of the pupil diameter.

The reason for improved depth of focus in conventional lenses is linked to residual spherical aberration.

This removes spherical aberration while preserving the wide field of the short focal-length mirror.

Its symmetrical optical configuration produces low spherical aberration and astigmatism.

The photographer may introduce three levels of spherical aberration via a push-pull ring.

Compound lenses are built to correct this "spherical aberration" or "curvature of field".

What they should have seen were curved or circular bands, bottom, which indicate a deformity known as spherical aberration.

So if the spherical aberration can be corrected, a very wide field of view can be obtained.

The distortion, called a spherical aberration, prevents the telescope from finely focusing the light it gathers.

The two spherical aberrations then cancel, and detailed analysis shows all other aberrations are removed as well.