Aplanat, lens corrected to minimize chromatic and spherical aberrations even at a wide aperture. Hugo Adolph von Steinheil (1832-93) is credited with having introduced the first one in 1866.
— Robin Lenman
aplanat
| Photography Encyclopedia: aplanat |
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 | John Henry Dallmeyer (photography) |
| Carl August von Steinheil (photography) |
| Rapid Rectilinear |
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 | What is meant by aplanatic points of a surface? |
| Where are the three pairs of aplanatic points located? |
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 | Photography Encyclopedia. The Oxford Companion to the Photograph. Copyright © 2005 by Oxford University Press. All rights reserved. Read more |
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- What is meant by aplanatic points of a surface?
- Where are the three pairs of aplanatic points located?
Mentioned in
- John Henry Dallmeyer (photography)
- Carl August von Steinheil (photography)
- Rapid Rectilinear
