| Year | 1922 |
| Date | 27-Apr |
| Volume | 46 |
| Issue | 1,096 |
| Page | 406 |
| Category | Workshop Topics |
| Part | |
| Title | Some Points on Scale Photography |
| Author | |
| Notes | Rectilinear lenses, astigmatism, photographic astigmatism and its tests, photographic anastigmats, the nodal point, graphic calculation of conjugate distances (correction on page 501), photographic hints, development |