F-Number & Spherical Aberration: Uncovering the Relationship

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SUMMARY

The discussion centers on the relationship between the F-number of a lens and spherical aberration. It is established that faster lenses, such as those with an F-number of f/2, exhibit greater spherical aberration compared to slower lenses like f/5 and f/10. This correlation indicates that as the F-number decreases, the likelihood of spherical aberration increases, impacting image quality. While a formula for quantifying this relationship is suggested, specific details were not provided in the discussion.

PREREQUISITES
  • Understanding of lens optics and F-number terminology
  • Knowledge of spherical aberration and its effects on image quality
  • Familiarity with parabolic mirrors and their applications in telescopes
  • Basic mathematical skills for potential formula application
NEXT STEPS
  • Research the mathematical formulas related to spherical aberration in optics
  • Explore the impact of different F-numbers on lens performance
  • Study the design principles of parabolic mirrors in telescopes
  • Investigate methods to minimize spherical aberration in high-speed lenses
USEFUL FOR

Optical engineers, photographers, astronomers, and anyone involved in lens design or image quality optimization.

russel.arnold
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how F-number of a lens and spherical aberration are related?
 
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the faster the lens (or parabolic mirror in a telescope) the greater the probability of spherical aberration

f2 worse aberration than f5 which would be worse than a f10
there may be formula for working it out ... I don't know them ;)

Dave
 

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