V04 Firmware Upgrading Content: 

1. Compatible with more lens; 

2. AF speed is increased for partial lens; 

3. Improve some AF mistakes for AF-I lens; 

4. Improve some Exposure mistakes of V03 Firmware; 

5. Improve some other bugs as follows: 

  5.1 Improve Partial Lens' mistake of DX/FX recognition; 
  5.2 Improve partial lens' mistake of changing AF/MF mode;