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What is Lens Flare and the Mechanisms of Lens Flare

Lens flare is one of those optical phenomena which can ruin an otherwise perfect photograph, and all too often you don'tknow it until after the fact when you get your photos back from processing. Lens flare can show up as streaks, geometrically shaped spots, or an overall haze which reduces contrast and saturation and masks subject detail.

15 Dec 2007

Geometrical Distortion - A Form of Optical Aberration

Geometrical Distortion is form of optical aberration which is normally observed in stereoscopic microscopy.

13 Dec 2007

Comatic Aberration – What is Comatic Aberration?

Comatic aberration is an optical aberration which mainly occurs with off-axis light fluxes. Comatic aberration is most serious when a microscope is out of alignment.

10 Dec 2007

Optical Aberration - Astigmatism Aberration

Astigmatism aberration is a result of an off-axis image of a point of specimen which appears as an ellipse of a line rather than a point.

7 Dec 2007

Field Curvature Aberration – What is Field Curvature Aberration?

In optical microscopy, field curvature is an optical aberration that most of the experienced microscopists are familiar with. Field curvature occurs when lenses that have curved surfaces are used.

7 Dec 2007

Spherical Aberration - What is Spherical Aberration?

Spherical Aberration is a condition that occurs in lenses with spherical surfaces, such as the lenses used in small microscopes. Spherical aberration is caused by the failure of light rays to converge to the same point when the light rays are parallel to the optic axis but at different lengths from the optic axis.

6 Dec 2007

Chromatic Aberration – The Definition of Chromatic Aberration

Chromatic aberration is also referred to as color fringing. Chromatic aberration occurs when a lens system is creating different focal lengths for different wavelengths of light. In other words, it is not creating identical focal plane for different light rays when the light rays are brought into focus.

2 Dec 2007

What is Optical Aberration and Types of Optical Aberration?

Optical aberration can be considered as a flaw or distortion in the image generated by an optical system such as a lens or mirror compared to the original image.

1 Dec 2007

Optical Telescope - How Does it Work?

An optical telescope is an instrument that can make distant objects appears much closer.

1 Dec 2007

Liquid Lens - An Introduction to Liquid Lens

The theory behind liquid lens is based on the properties of one or more fluids to create magnifications within a small amount of space. Liquid lens can be considered as "infinitely variables" lens with variable focus, and the focus is controlled without using any moving parts.

21 Nov 2007