A lens that transmits light without separating it into constituent colours.
消色差透镜
Example sentencesExamples
Fluorite objectives also have better resolving power than achromats and provide a higher degree of contrast, making them better suited than achromats for color photomicrography in white light.
The long focus achromat is certainly not portable but it does give superb images at a reasonable cost.
This high quality fully coated achromat with a focal ratio of f / 9 is compact for a 203 mm and weighs only 44 lbs and is supplied with high quality hinged mounting rings.
Since my old box contains the mbs - 10, it is time to compare its lens to some available achromats and some closeup lenses lying around in my cupboard.
But labels can be misleading; just as there are better quality achromats, not all apochromats are created equal.
The two-element lenses used in today's achromats greatly reduce the chromatic aberration.
Quartz-sapphire and quartz-lanthanum fluoride achromats provide better performance.
Definition of achromat in US English:
achromat
nounˈakrəˌmat
another term for achromatic lens
Example sentencesExamples
The long focus achromat is certainly not portable but it does give superb images at a reasonable cost.
The two-element lenses used in today's achromats greatly reduce the chromatic aberration.
Quartz-sapphire and quartz-lanthanum fluoride achromats provide better performance.
Fluorite objectives also have better resolving power than achromats and provide a higher degree of contrast, making them better suited than achromats for color photomicrography in white light.
Since my old box contains the mbs - 10, it is time to compare its lens to some available achromats and some closeup lenses lying around in my cupboard.
But labels can be misleading; just as there are better quality achromats, not all apochromats are created equal.
This high quality fully coated achromat with a focal ratio of f / 9 is compact for a 203 mm and weighs only 44 lbs and is supplied with high quality hinged mounting rings.