518

On the best light for painting.

OF THE QUALITY OF LIGHT.

In proportion to the number of times that a b goes into c d will it be more luminous than c d. And similarly, in proportion as the point e goes into c d will it be more luminous than c d; and this light is useful for carvers of delicate work. [Footnote 5: For the same reason a window thus constructed would be convenient for an illuminator or a miniature painter.]

[Footnote: M. RAVAISSON in his edition of the Paris MS. A remarks on this passage: “La figure porte les lettres f et g, auxquelles rien ne renvoie dans l’explication; par consequent, cette explication est incomplete. La figure semblerait, d’ailleurs, se rapporter a l’effet de la reflexion par un miroir concave.” So far as I can see the text is not imperfect, nor is the sense obscure. It is hardly necessary to observe that c d here indicate the wall of the room opposite to the window e and the semicircle described by f g stands for the arch of the sky; this occurs in various diagrams, for example under 511. A similar semicircle, Pl III, No. 2 (and compare No. 149) is expressly called ‘orizonte’ in writing.]

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

VII * X
Notebooks of Leonoardo da Vinci
VIII: Botany for Painters and Elements of Landscape Painting.
. . .
On the productive power of minor artists.
498,
499,
500,
501
A caution against one-sided study.
502
How to acquire universality.
503,
504,
505,
506
Useful games and exercises.
507,
508
On the size of the studio.
509
On the construction of windows.
510,
511,
512
On the best light for painting.
513,
514,
515,
516,
517,
518,
519,
520
On various helps in preparing a picture.
521,
522,
523,
524,
525,
526,
527,
528,
529,
530
On the management of works.
531,
532
On the limitations of painting.
533,
534,
535
On the choice of a position.
536,
537
The apparent size of figures in a picture.
538
. . .