ONLINE LABORATORY QUIZ

The following are the inherent lens defects but one:

• coma

• astigmatism

• flares

• comatose

It concerns with rays entering the lens obliquely.

• Coma or lateral spherical aberration

• Astigmatism

• Curvature of Field

• Distortion

A failure of a lens to produce a point image of an object point.

• Astigmatism

• Coma or lateral spherical aberration

• Curvature of Field

• Distortion

The image formed by lens comes to a sharper focus on curved surface than on  a flat surface.

• Curvature of Field

• Distortion

• Coma or lateral spherical aberration

• Astigmatism

The outer parts of the image produced by the lens will be magnified either less or more than the center image.

• Distortion

• Coma or lateral spherical aberration

• Astigmatism

• Curvature of Field

The inability of the lens to focus all colors in the same plane.

• Chromatic Aberration

• Chromatic difference of magnification or Lateral

• chromatic aberration

• Spherical Aberration

The inability of the lens to produce images, sizes of objects with different colors.

• Chromatic difference of magnification or Lateral

• chromatic aberration

• Spherical Aberration

• Chromatic Aberration

Photographic rays passing through the edges of a lens are bent or refracted more sharply than those passing through the central part of the lens, thus they come to focus near the lens than those of the central rays.

• chromatic aberration

• Spherical Aberration

• Chromatic difference of magnification or Lateral chromatic aberration

When the curving is outward. This is what we call us:

• Barrel Distortion

• Pincushion Distortion

• No Distortion

• Distortion

What do we call if the distortion is curving inward?

• Pincushions Distortion

• Positive distortion

• pincushion type

• All of these