References / Lenses & camera heights

Same scene, 24 mm

A crate, a figure and a door at 24 mm: wide, deep, splayed at the edges.

Same scene, 24 mm: A crate, a figure and a door at 24 mm: wide, deep, splayed at the edges.
Open in the Perspective Box GeneratorDownload PNGLesson: Perspective Basics: Horizon, Vanishing Points and Terms

What to look at

Vanishing points close together; the crate's edges converge hard.

The door at 8 m looks far away; the crate at 4 m looks close. Depth is exaggerated.

Compare the 50 mm and 85 mm references: same objects, same distances.

What this scene is for

The first of three references with the same crate, figure and door framed at the same size from different distances. This is the wide one: the camera is close, the depth is stretched and the edges splay. Use it to decide which lens a drawing should imitate before you start.

The mistake it settles

Thinking a wide lens distorts objects. It does not; it just puts the camera close, and close things look big. What changes is the relationship between near and far, which is why the crate dwarfs the door here and matches it at 85 mm.

The camera

Lens24 mm on full frame
Camera height1.6 m above the floor (standing)
Rotation32° to the scene's axes
Tiltlevel (verticals stay vertical)
Objects1 m cube · 1.75 m figure · 2.1 m door
Floor1 m squares

Measured off this render

Taken from the same camera model the tool draws with, on the 1340 × 754 PNG above.

Angle of view73.7° across (24 mm on full frame)
Horizon422 px from the top, 56% of the image height
Depth-axis vanishing point112 px from the left edge
Width-axis vanishing point760 px beyond the right edge
ObjectDistanceHeight on the renderBelow the horizon
1 m cube4 m223 pxall of it
1.75 m figure6.3 m261 px91%
2.1 m door8.2 m235 px76%

Draw it from these numbers

  1. Rule the horizon across the sheet at 56% of the picture height — 422 px down on this 754 px render. Every other line in the scene is measured from it.
  2. Two vanishing points on that line: 112 px from the left edge, and 760 px beyond the right edge — close enough to reach on a larger sheet.
  3. Set the scale from the 1.75 m figure at 6.3 m: 261 px tall, with 91% of it below the horizon. That share is the camera height divided by the object's height (1.6 ÷ 1.75 m), and it is the same for every object of that height anywhere in the picture.

Open the reference in the tool to move the camera, change the lens, or add your own objects at real sizes; the share link keeps your version. Draw over the PNG at 30–50% opacity in any app with layers.

Question

What does a 24 mm lens do to a drawing?

It spreads the objects apart in depth and pushes the vanishing points close together, so edges converge hard. In this set of three it gives the most dramatic version of the same three objects. Use it for interiors, alleys and anything that should feel immediate.