| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1992 | 978-0-9695025-0-0 | Harold M. Merklinger | The Ins and Outs of Focus |
| '' | 978-0-9695025-1-7 | The Ins and Outs of Focus | |
| 1993 | 978-0-9695025-2-4 | Harold M. Merklinger | Focusing the View Camera: A Scientific Way to Focus the View Camera and Estimate Depth of Field |