Supersized em square


I came across this magnificent specimen recently—Sharp Type’s Carta Nueva by My-Lan Thuong, 4096 units to the em—and wondered which other typefaces have ventured into such expansive territory. 

Comments

  • The em is a fundamental scale so this actually means the unit is ¹/₄₀₉₆ em.
  • edited December 2020
    Yet another place capitalization matters...  :-)
    an em: the unit.
    the Em: the number of units composing the height.
    (Although usage certainly varies.)
  • Chris LozosChris Lozos Posts: 1,375
    I use 4000 for hairline fonts
  • Nick ShinnNick Shinn Posts: 1,763
    The linked AIGA article described it thus: “4096 units per em scale”.
    I spose I should have written “4096 units to the em-square”?

    But anyway—other “big em-square” fonts?
  • The em is a fundamental scale so this actually means the unit is ¹/₄₀₉₆ em.
    u = 1/4096 * m
      is mathematically synonymous with
    u = m/4096
      and
    4096 * u = m

  • The em is a fundamental scale so this actually means the unit is ¹/₄₀₉₆ em.
    u = 1/4096 * m
      is mathematically synonymous with
    u = m/4096
      and
    4096 * u = m

    But the em remains constant given the same point size. So this is outline definition precision.
  • The linked AIGA article described it thus: “4096 units per em scale”.
    I spose I should have written “4096 units to the em-square”?

    But anyway—other “big em-square” fonts?
    Gimlet X-Ray has 5000 units per em.



  • What is the main disadvantage of high UPM (let's say above 2000)? I guess font size, but maybe some other things like compatibility with some text processing apps, problems on the web, etc.? 
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