By Shoot a series of the same subject at different step intervals—start with your calculated distance, then photograph at half that distance and double that distance. Compare the resulting stacks side-by-side in your editing software to see where detail breaks down or overlap becomes excessive. This simple test reveals whether your math matches your real-world needs far better than any formula alone.
Document your aperture, focal length, and magnification ratio for each successful test. Keep a simple spreadsheet or notebook entry showing which settings produced sharp results for different subject types—flowers need different …
