requesttype=0x21

Issued after Power supply status, Identify Camera, unknown command 2, or Get captured image.

Command: 0x54 bytes

00000000  14 00 00 00 01 02 00 00 00 00 00 00 00 00 00 00  ................
00000010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000020  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000030  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000040  02 00 00 00 21 00 10 12 14 00 00 00 a8 e7 12 00  ....!...........
00000050  0f 00 00 00                                      ....
      

Camera Response: 0x54 bytes (EOS 20D)

00000000  14 00 00 00 01 03 00 00 00 00 00 00 00 00 00 00  ................
00000010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000020  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000030  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000000  02 00 00 00 21 00 10 22 14 00 00 00 a8 e7 12 00  ....!.."........
00000010  00 00 00 00                                      ....