* 4002 (not copied to jpeg)

first short = size of the tag in short
second short (must be >0x0200) : 
  0000 (20d, 350d). size=2676 bytes
  0000 (1d m2). size=2436
  0000 (1ds m2). size=2480
  0x1000 (5d, 1d m2n). size=11110
  0x1001 (30d). size=11138
  0x1002 (400d). size=11229
  0x2000 (1d m3). size=5932
  0x2001 (1ds m3, 40d). size=6040
  0x2002 (450d, 1000d). size=6054 bytes
  0x2003 (50d, 5d m2). size=8520 bytes
...