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Control of chromatic aberration is also improving, thanks to dropping prices of low - and super-low-dispersion apochromatic glass.— PopPhoto: Photography Newswire
Apochromatic means "free of chromatic and spherical aberration" (e.g. an apochromatic lens).— Citizendium, the Citizens' Compendium - Recent changes [en]
The level of color correction is specified as either achromatic or apochromatic.— MAKE Magazine
You can, for example, buy semi-plan apochromatic objectives and plan achromat objectives.— MAKE Magazine
Although with the increase in power it is correspondingly difficult to combine all these corrections in one objective, they are brought to a high pitch of excellence in the present-day "achromatic" objectives, and so remove the necessity for the use of the higher priced and less durable apochromatic lenses.— The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.
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