Canon SDK (EdsGetPropertyDesc)

Question

I was playing with the canon 2.10 SDK (eos) and I'm having trouble understanding the EdsGetPropertyDesc PropDesc array of data. The value within the array doesn't look like my camera options.

For example the Av values includes 40,43,45,48,51,53,... while my camera has 4, 4.5, 5, 5.6,...

Do I have to convert the value somehow?

Answer 1

here the Av values in Hex. you can map it with your camara settings

value      Aperture Value
---------------------------
Ox40       11  
Ox43       13 (1/3)  
0x44       13    
0x45       14
0x48       16     
0x50       22
0x53       25

you will find the full Aperture table here kEdsPropID_Av EDSDK API