Sensor Tilt
Turn focus differences into a correction.
Enter focus offsets measured across the sensor. The plane model shows the tilt magnitude and the equivalent adjustment at your tilt plate.
Purpose and method
What this calculator does
How much is my sensor tilted? Translate focus differences across a sensor into plane tilt.
In words: Tilt angle comes from focus offset across a known sensor distance.
The saved camera supplies the sensor dimensions. Focus offsets and adjuster spacing must come from your own focus analysis and tilt-plate geometry.
Working geometry
Sensor plane tilt
Focus offsets across the sensor describe the angle between the ideal and measured planes.
Measurements
Sensor and focus plane
Positive means the right or bottom edge focuses farther away; negative reverses that direction.
Radial distance from the optical axis to the adjustment point.
Calculated now
Plane tilt and correction
Combined tilt is 2.39 arcmin; right side and bottom side are farther from the reference focus.
- Combined plane tilt
- 0.0398°2.39 arcmin
- Adjuster correction
- 34.7 µmat 50.0 mm
- Horizontal tilt
- 0.0318°
- Vertical tilt
- 0.0239°
- Corner-to-corner focus delta
- 22.4 µm
Model
The signed axis equations retain direction; their orthogonal slopes combine into the magnitude of the tilted plane.
This is a geometric plane estimate. Focus measurements can also include field curvature, optical aberration, sag, seeing, and measurement noise. Confirm corrections with repeated exposures.