Technical notes

Common Problems in Focus Stacking

Practical articles developed from repeated high-magnification capture, failure analysis and workflow refinement. Each note explains an optical or mechanical limitation encountered in real specimen work, why it occurs, and how it is mitigated in practice.

Note 00

What Is Macro & Focus Stacking?

The plain-language entry point: what macro actually means, why depth of field collapses at high magnification, and how focus stacking rebuilds it — no prior background assumed.

Read note →
Note 01

Haze & Halos

Why defocused foreground structures contaminate sharp regions—and why stacking software cannot reconstruct detail that was never recorded cleanly.

Read note →
Note 02

Subject & Camera Movement

How small physical shifts become large sensor-plane displacements and produce doubling, ghosting and unresolved transitions.

Read note →
Note 03

Magnification Breathing

Understanding apparent scale changes across a stack and the demands they place on alignment and composite integrity.

Read note →
Note 04

Vibration & Frame Blur

Why vibration is the least visible and least repairable artifact in deep stacks, where it comes from, and the control hierarchy that prevents it.

Read note →
Note 05

Rail Step Size & Depth of Field

How to choose step size from 2.5× to 10×: depth-of-field collapse with magnification, the 80 percent overlap rule, and worked step values for real configurations.

Read note →
Note 06

Macro Focus Stacking vs. Microscope Z-Stacking

Two optical paths to the same goal: finite-conjugate lenses versus infinity-corrected objectives, free-standing living specimens versus mounted preparations, and when each tool is the right one.

Read note →
Note 07

PMax vs DMap

The same source frames rendered twice: where PMax turns haze into texture that was never there, where DMap loses genuine fine detail, and how to choose between them.

Read note →
Expanded portfolio photograph