[MajesticHobo2]

  xxd IMGP0847.DNG | grep 03e400:
  0003e400: ffd8 ffc3 000e 0e10 800c 5002 0011 0001  ..........P.....

Look at the byte at offset 11 (0xb), it's there.

[byearthithatius]

Ohhh the b offset (11) is an offset _on that line_ (0003e400)! I got it now:D This thread taught me a great deal. Thank you, MajesticHobo2!