Aperture Chart 

Full - Half - One-Third Stops

  Full Stops     1/2 Stops    1/3 Stops 
ƒ/1 ƒ/1 ƒ/1
    ƒ/1.1
  ƒ/1.2 ƒ/1.2
ƒ/1.4 ƒ/1.4 ƒ/1.4
    ƒ/1.6
  ƒ/1.7  
    ƒ/1.8
ƒ/2 ƒ/2 ƒ/2
    ƒ/2.2
  ƒ/2.4  
    ƒ/2.5
ƒ/2.8 ƒ/2.8 ƒ/2.8
    ƒ/3.2
  ƒ/3.3  
    ƒ/3.5
ƒ/4 ƒ/4 ƒ/4
    ƒ/4.5
  ƒ/4.8  
    ƒ/5
ƒ/5.6 ƒ/5.6 ƒ/5.6
    ƒ/6.3
  ƒ/6.7  
    ƒ/7.1
ƒ/8 ƒ/8 ƒ/8
    ƒ/9
  ƒ/9.5  
    ƒ/10
ƒ/11 ƒ/11 ƒ/11
  ƒ/13 ƒ/13
    ƒ/14
ƒ/16 ƒ/16 ƒ/16
    ƒ/18
  ƒ/19  
    ƒ/20
ƒ/22 ƒ/22 ƒ/22
    ƒ/25
  ƒ/27  
    ƒ/29
ƒ/32 ƒ/32 ƒ/32
    ƒ/36