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topics/01_cameras/index.md

@@ -234,14 +234,6 @@ The refractive index of the material used in the lens can slightly differ as a f
 
 These effects can be tackled by combining multiple optical elements. Software correction is also possible, if the lens was properly calibrated beforehand.
 
-## Zoom lens vs prime lens
-
-Lenses capable of zooming are very common, but introduce significant complexity. This either leads to an increased price, or compromises in their sharpness or aperture. A prime lens, on the other hand, does not offer zoom capabilities, but often have superior image quality and calibration.
-
-![](img/Price_Prime_Zoom_Lenses.jpg)
-
-*source: https://www.slrlounge.com/glossary/prime-lens-definition/*
-
 # Aperture
 
 By using a diaphragm, the amount of light entering the lens can be controlled, effectively emulating a lens of a smaller diameter. The opening left by the diaphragm is called the aperture:
@@ -262,6 +254,14 @@ When scene points are out of focus, their circle of confusion takes the shape of
 
 *source: https://clideo.com/resources/what-is-bokeh-photography-effect*
 
+## Zoom lens vs prime lens
+
+Lenses capable of zooming are very common, but introduce significant complexity. This either leads to an increased price, or compromises in their sharpness or aperture. A prime lens, on the other hand, does not offer zoom capabilities, but often have superior image quality and calibration.
+
+![](img/Price_Prime_Zoom_Lenses.jpg)
+
+*source: https://www.slrlounge.com/glossary/prime-lens-definition/*
+
 # Shutter
 
 Light sensors are integrating light continuously. To obtain a useful image, the exposure start and end times need to be well defined.