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2. Adaptive optics - Wikipedia

   en.wikipedia.org/wiki/Adaptive_optics

   The simplest form of adaptive optics is tip–tilt correction, [9] which corresponds to correction of the tilts of the wavefront in two dimensions (equivalent to correction of the position offsets for the image). This is performed using a rapidly moving tip–tilt mirror that makes small rotations around two of its axes.

3. Schuler tuning - Wikipedia

   en.wikipedia.org/wiki/Schuler_tuning

   Schuler tuning is a design principle for inertial navigation systems that accounts for the curvature of the Earth. An inertial navigation system, used in submarines, ships, aircraft, and other vehicles to keep track of position, determines directions with respect to three axes pointing "north", "east", and "down".

4. Scheimpflug principle - Wikipedia

   en.wikipedia.org/wiki/Scheimpflug_principle

   Of course, the tilt also affects the position of the PoF, so if the tilt is chosen to minimize the region of sharpness, the PoF cannot be set to pass through more than one arbitrarily chosen point. If the PoF is to pass through more than one arbitrary point, the tilt and focus are fixed, and the lens f -number is the only available control for ...

5. Perspective control - Wikipedia

   en.wikipedia.org/wiki/Perspective_control

   It is commonly suggested [citation needed] to correct perspective using a general projective transformation tool, correcting vertical tilt (converging verticals) by stretching out the top; [4] [5] [6] this is the "Distort Transform" in Photoshop, and the "perspective tool" in GIMP.

6. Tilt–shift photography - Wikipedia

   en.wikipedia.org/wiki/Tilt–shift_photography

   The tilt and shift movements can be independently rotated in any direction. Hasselblad offers a tilt-and-shift adapter, the HTS 1.5, for use with the HCD 28 mm f / 4, HC 35 mm f / 3.5, HC 50 mm f / 3.5, HC 80 mm f / 2.8 and HC 100 mm f / 2.2 lenses on H-System cameras. To allow infinity focus, the adapter includes optics that multiply the lens ...

7. Tilt (optics) - Wikipedia

   en.wikipedia.org/wiki/Tilt_(optics)

   Piston and tilt are not actually true optical aberrations, as they do not represent or model curvature in the wavefront. Defocus is the lowest order true optical aberration. If piston and tilt are subtracted from an otherwise perfect wavefront, a perfect, aberration-free image is formed. Rapid optical tilts in both X and Y directions are termed ...

8. Optical aberration - Wikipedia

   en.wikipedia.org/wiki/Optical_aberration

   In addition to these aberrations, piston and tilt are effects which shift the position of the focal point. Piston and tilt are not true optical aberrations, since when an otherwise perfect wavefront is altered by piston and tilt, it will still form a perfect, aberration-free image, only shifted to a different position.

9. Piston (optics) - Wikipedia

   en.wikipedia.org/wiki/Piston_(optics)

   Piston and tilt are not actually true optical aberrations, as they do not represent or model curvature in the wavefront. Defocus is the lowest order true optical aberration. If piston and tilt are subtracted from an otherwise perfect wavefront, a perfect, aberration-free image is formed.