1. 1 Optics for Astrometry: a quick introduction William F. van Altena Yale University Basic Astrometric Methods Yale University July 18-22, 2005

2. 2 Filters and windows -1

3. 3 Filters and windows - 2

4. 4 Filters and focal length

5. 5

6. 6 Filter flatness

7. 7

8. 8 The Seidel Aberrations

9. 9 First-order theory

10. 10 S1 - Spherical aberration

11. 11 S1 and lens shape

12. 12 S1 and the caustic curve

13. 13 S1 and the HST

14. 14 S1 and astrometry

15. 15 S2 - Coma

16. 16 S2 - zonal variation

17. 17 S2 - minimizing coma

18. 18 S2 and astrometry

19. 19 S3 - Astigmatism

20. 20 S3 and image shape

21. 21 S3 and astrometry

22. 22 S4 - Field Curvature

23. 23 S5 - OFAD

24. 24 S5 and field stops

25. 25 S6 - Chromatic aberration

26. 26 Reflecting telescopes

27. 27 Conic sections

28. 28 Aberrations in reflectors

29. 29 The sagittal depth

30. 30 Spherical aberration

31. 31 Higher-order aberrations - 1

32. 32 Higher-order aberrations -2

33. 33 Two-mirror telescopes

34. 34 Normalized parameters

35. 35 Reflector types

36. 36 Angular aberrations

37. 37 Classical Cass & the R-C

38. 38 Optical alignment errors

39. 39 Tilt and Decenter

40. 40 Despace

41. 41 Alignment error example

42. 42 Relative aberrations

43. 43 “Sky errors”

44. 44 Useful relations

45. 45 Tangent point location

46. 46 Astrometric correction formulae