Related articles:
Dioptre
Angle of view
F-number
Lens (optics)
Telephoto lens
Magnification
Photographic lens
Crop factor
Wide-angle lens
Focus (optics)
Optics
Photography
Depth of field
Digital camera
Film format
Key terms:
lens
math
mm
optical
focal length
distance
plane
frac
focus
rear
camera
objects
n r
normal
surface
mirror
images
lenses
concave
convex
negative
angle of view
print
photograph
equal
distant
typical
sensor
medium
vertex
diagonal
radius of curvature
front focal
focal point
lens must
optical power
magnification
back focal
collimated
focal distance
focal plane
photography
normal lens
shorter focal
optical system
sign convention
rear nodal point
effective focal length
focal length of a lens
distance from the front
Search external links cited by footnotes on Wikipedia page Focal length:
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