Optical size range for Source Serif 4

[Becca5F95]

What is the optical size range for Source Serif 4 versions? The range can vary based on the font's design characteristics, and I'm able to find general guidelines, but I'm curious if anyone knows the specific size ranges intended for the Display, Subhead, Regular, Small Text, and Caption versions of Source Serif 4.

Ex.

Caption: 6 and 8 points

Small text: 8 to 11 points

Regular or Body text: 11 to 14 points

Subhead: 14 to 24 points

Display: above 24 points

https://fonts.adobe.com/fonts/source-serif-4-display

https://fonts.adobe.com/fonts/source-serif-4-subhead

https://fonts.adobe.com/fonts/source-serif-4

https://fonts.adobe.com/fonts/source-serif-4-small-text

https://fonts.adobe.com/fonts/source-serif-4-caption

[Bobby Henderson]

According to an article about Source Serif 4 (link below) there are no specific optical point sizes listed for the various styles from caption up to display. The style names are simply a suggestion for various point size ranges.
https://blog.adobe.com/en/publish/2021/03/04/source-serif-gets-optical-sizes

[Jake Giltsoff · Accepted solution]

Hi @Becca5F95, I checked in with the designer of Source Serif on our team, Frank, and he suggests the following as a general guidance: 

8pt Caption
16pt Small Text
20pt Text

32pt Subhead
60pt Display

Best,
Jake

(edited to add in subhead size)

[Becca5F95]

This is the best possible answer that we could have received, thank you!

Was there any mention of the size range for Source Serif 4 Subhead?

[Jake Giltsoff · Accepted solution]

Hi @Becca5F95 — ah yes missed this one, ~32 for the Subhead. 

Also worth noting that if you use the variable font version and an application such as InDesign it will handle the optical sizing automatically for you. https://fonts.adobe.com/fonts/source-serif-4-variable