References / Lenses & camera heights
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.
The camera
| Lens | 24 mm on full frame |
| Camera height | 1.6 m above the floor (standing) |
| Rotation | 32° to the scene's axes |
| Tilt | level (verticals stay vertical) |
| Objects | box 1 × 1 × 1 m · figure 1.75 m · box 0.9 × 0.1 × 2.1 m |
| Floor | 1 m squares |
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.