color aberration

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color aberration

[′kəl·ər ab·ə′rā·shən]

(electronics)

chromatic aberration

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chromatic aberration

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They correct the system's color aberration as well as flatten the focal plane.

Building my dream observatory: a veteran telescope maker spent four years building this novel 32-inch reflector and home observatory

Suspecting the effect was an illusion, I tried the MV 1 on a 6-inch Maksutov-Newtonian reflector--an instrument that shows no hint of color aberration. The view of the Moon through this scope also seemed slightly better with the filter.

A filter for refractor blues

(A Megrez 102-mm f/6.8 refractor is also available for $1,149.) The manufacturer conservatively labels its two Megrez instruments as "semi-apochromatic." The conservatism is laudable--I've seen similar refractors with significantly higher levels of color aberration marketed as "apochromats," salesmanship that stretches the definition of what constitutes a color-free apochromatic refractor.

William Optics Megrez 80 refractor

That's for top-of the-line apochromatic models, ones made of exotic glass types and multielement objectives that eliminate every trace of color aberration in the image.

Two large, low-cost refractors: a complete 6-inch refractor for little more than $1,000? A 4.7-inch for well under $1,000? Too good to be true?

The Border Hawk showed less color aberration than the Pro-Optic.

Big Binoculars on a Budget : These 100-millimeter-aperture binoculars cost less than what some people pay for 7[yen]50s. Can they be any good for astronomy?

Not every white bird is an albino: sense and nonsense about color aberrations in birds.

Registro de aves con leucismo en Baja California Sur, Mexico

We suspect that color aberrations such as isabelline and albinism are maladaptive in North American Porcupines, otherwise they would likely be more commonly observed in nature (sensu Caro 2005).

Unusual coloration of a North American porcupine (Erethizon dorsatum)

I'm interested in spending time with materiality--with the glitches, the surface irregularities, and the color aberrations. When things aren't seamless, the viewer is thrown out of the film.