Notch code

A notch code is a set of notches or recesses cut into the edge of a piece of sheet film to provide a tactile way to identify the film brand, type, and processing chemistry (e.g. black and white, color negative, or color reversal) in the dark. It enables photographers to identify the emulsion side of the film when loading sheet film holders, and helps processing lab technicians avoid placing sheets in the wrong processor. After processing the notches serve as a permanent visual record of the same information. When the film is oriented vertically (portrait format), the notches are in the top edge near the upper right corner when the emulsion faces the viewer.

Code notches and ISO speeds for Kodak sheet films

Type Code Daylight ISO Tungsten ISO
Commercial 6127, 4127 
__________  __    _____
          \/  |__|
20/14 8/10
Contrast Process Pan 4155 
______  _  ___  _  ____
      \/ \/   \/ \/
100/21 80/20
Contrast Process Ortho 4154 
______  _  ___    _____
      \/ \/   |__|
100/21 50/18
Ektapan 4162 
____________  _     ___
            \/ |___|
100/22 100/22
Fine Grain Positive 7302 
_______________     ___
               |___|
40/17 10/11
Kodalith Ortho 2556, Type 3 Unnotched 10/15 6/9
Kodalith Pan 2568 
_______  _  ___  _____
       \/ \/   \/
40/17 36/16
Plus-X Pan Professional 4147 
____  _  _  ___     __
    \/ \/ \/   |___|
125/22 125/22
Plus-X Pan Professional (PXT) [1] 
______  ___    _    __
      \/   \__/ \__/
125/22 125/22
Portra 160 
_____________  __       __
             ╰╯   \____/
 160
Tri-X Pan Professional 4164 
_________  _  _  _____
         \/ \/ \/
320/26 320/26
Tri-X 320 (TXP) 
_______      _    ___
       \/\/\/ |__|
320/26 320/26
Super-XX Pan 4142 
____________  _  _____
            \/ \/
200/24 200/24
Tri-X Ortho 4163 
__  _  ____    _    __
  \/ \/    \__/ \__/
320/26 200/24
Royal-X Pan 4166 
___  _  _  ___     ___
   \/ \/ \/   |___|
1250/32 1250/32
Royal Pan 4141 
____________  ___  ___
            \/   \/
400/27 400/27
T-Max 100 Professional 5052 
_____  ________  _____
     \/        \/
100/21 100/21
T-Max 100 (100TMX) 
_________        ____
         \/\/\/\/
100/21 100/21
T-Max 400 Professional 5053 
_______  _  _     ____
       \/ \/ |___|
400/27 400/27
T-Max 400 (400TMY) 
_________    _    ___
         \/\/ |__|
400/27 400/27
Professional Copy 4125 
__  ____  _    _    __
  \/    \/ \__/ \__/
25/15 12/12
Pan Masking Film 4570 
__  __________  __  __
  \/          \/  \/
Matrix Film 4150 
_  _  _    ____    ___
 \/ \/ \__/    \__/
Pan Matrix 4149 
__  ____  ____  ______
  \/    \/    \/
Separation Negative 4131, Type 1 
____  _    _    ______
    \/ \__/ \__/
Separation Negative 4133, Type 2 
_______    __    _____
       \__/  \__/
High Speed Infrared 4143 
____  __  __  __     ___
    \/  \/  \/  |___|
Ektar 100 Color Negative Film 
_____________     _____
             \___/
 100
Ektachrome 64 Professional 6117 
___________      _  __
           ╰----╯ \/
64/19 16/13 (with 80A)
Ektachrome 100 Professional 6122 
_____  _      _  _  __
     \/ ╰----╯ \/ \/
100/21 25/15 (with 80A)
Ektachrome 100 Plus Professional 6105 
________      _  _  __
        ╰----╯ \/ \/
100/21 25/15 (with 80A)
Ektachrome 200 Professional 6176 
__  _  _      _  _  __
  \/ \/ ╰----╯ \/ \/
200/24 50/18 (with 80A)
Ektachrome 64T Professional 6118 
________  _      _  __
        \/ ╰----╯ \/
40/17 (with 85B) 64/19
Ektachrome Duplicating 6121 
_____  _  _      _  __
     \/ \/ ╰----╯ \/

Code notches and ISO speeds for Ilford sheet films

Type Code Daylight ISO Tungsten ISO
Ortho Plus 
_______________  _____
               ╰╯
 80/20 40/17
FP4 Plus (New) 
____    _  _____    ___ 
    ╰--╯ ╰╯     ╰--╯
125/22
FP4 Plus (Old) 
________  _______  ___
        ╰╯     ╰╯
125/22
HP5 Plus (New) 
__   ______  ___   ___
  ╰-╯    ╰╯  ╰-╯
400/27
HP5 Plus (Old) 
___  ___  _______  ___
   ╰╯ ╰╯      ╰╯
400/27
Delta 100 Professional 
_   __  _  ___   _____
 ╰-╯╰╯╰╯  ╰-╯
100/21
Delta 400 Professional (New) 
_   ____  _  _   _____
 ╰-╯  ╰╯╰╯╰-╯
400/27
Delta 400 Professional (Old) 
__________  _  __  ___
          ╰╯╰╯╰╯
400/27
XP2 Super (New) 
_   __  _  _  __   ___
 ╰-╯╰╯╰╯╰╯╰-╯
400/27
XP2 Super (Old) 
____  _  __  _  ______
    ╰╯╰╯╰╯╰╯
400/27

Code notches and ISO speeds for Fuji sheet films

Type Code Daylight ISO Tungsten ISO
Fujichrome Velvia 
__________    ________
         ╰---╯
50/18 16/13
Fujichrome Velvia 100 
_  ______     ________
 ╰╯    ╰---╯
100/21 32/16
Fujichrome Velvia 100F 
__  __  __    ________
  ╰╯╰╯╰---╯
100/21 32/16
Fujichrome Astia 100F 
_  _  ____    ________
╰╯╰╯  ╰---╯
100/21 32/16
Fujichrome Provia 100F 
_______  _     _  ____
      ╰╯╰---╯╰╯
100/21 32/16
Fujichrome T64 
_______  _     _  __ _
      ╰╯╰---╯╰╯╰╯
64/19 32/16
Fujicolor Pro 160S 
________       ___  __
        \_____/   ╰╯
                     O
160/23 50/18
Fujicolor Pro 160C 
__  _____      _______
  ╰╯   \_____/
                     O
160/23 50/18
Fujicolor NPL 160 
__  _  __      ___  __
 ╰╯╰╯ \____/   ╰╯ 
                     0
100/21 160/23
Fujichrome Duplicating Film CDU Type II 
__________    ____  __
         ╰---╯  ╰╯
Fujicolor Internegative Film 
__________      _   ___
          \____/ ╰-╯ 
                      0

Historic Notch Codes

Sources

References

  1. ^ http://125px.com/docs/unsorted/kodak2/f8.pdf [dead link]

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