31

The comparative size of the image depends on the amount of light.

Every object we see will appear larger at midnight than at midday, and larger in the morning than at midday.

This happens because the pupil of the eye is much smaller at midday than at any other time.

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

30 * 32
Notebooks of Leonoardo da Vinci
I: Prolegomena and General Introduction to the Book on Painting.
. . .
11,
12,
13
The plan of the book on Painting.
14,
15,
16,
17
The use of the book on Painting.
18
Necessity of theoretical knowledge.
19,
20
The function of the eye.
21,
22,
23,
24
Variability of the eye.
25
Differences of perception by one eye and by both eyes.
26,
27,
28,
29
The comparative size of the image depends on the amount of light.
30,
31,
32,
33,
34,
35,
36,
37,
38,
39