Optical Size Demonstration

Autor:

Blythwood

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Shortlink:

https://czwiki.cz/b/52412

Zdroj:

Wikimedia Commons

Formát:

1739 x 2564 Pixel (236577 Bytes)

Popis:

Advanced fonts are issued in optical sizes: different designs for different text sizes. During the metal-type era each size of letters had to be custom-cut by hand, and would be given a different style that looked right at its size. Simpler modern computer fonts, and in particular almost all free and open-source ones, do not offer this, instead using one design for all text sizes.

At top is how this is meant to look, using the open-source font EB Garamond: the larger text is in a slimmer size 12 weight, while the smaller text is in a size 08 weight that is bulkier so it looks clear when printed small. At bottom is the wrong way round: size 08 blown up looks heavy and size 12 printed small looks anaemic.

It is worth noting that this is quite a subtle example and other fonts have much bigger changes across optical sizes. For example, the caption style of PT Serif massively increases the x-height (the height of small lower-case letters).

This image was suggested by an illustration in the article "How To Choose The Right Face For A Beautiful Body" by Dan Reynolds.

Licence:

CC BY-SA 4.0

Credit:

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