Invariants in subject size and depth of field?
12506
What exactly determines depth of field?
111656
Estimation of the expected Euclidean distance between two random points on a unit $n$-hemisphere
73821
Understanding the coordinate system for ImageTake
101342
Deep confusion with conventions and signs in geometric optics
34583
How can I calculate sensor size (width and height) from focus length, vertical, and horizontal angle of view?
59703
How to capture the scale of a scene?
118439
Pixel height and width in degrees
93222
How does sensor size affect the brightness of an image given the same field of view and aperture?
101461
Length of Feature
147537
Detecting an ellipse in a glaucoma photo
145204
Calculate object size when I have physical pixel size
67822
How to determine lens undistortion values for motion tracking?
90691
Linear independence of vectors over larger fields
98225
Dimensions with Rank-Nullity question
46532
Clipping aerial image pairs by their overlapping area
53859
Continuous image of separable space
116068
How to determine exact contrast ratio