Hi everyone!


I've been googling around for quite sometime now trying to find the answer on using "white card" or "gray/grey card" for achieving accurate white balance & exposure. Up to now I dont have the answers!.....When to use these cards? How do I properly set up my custom white balance reference via in-cam(Canon 40D)?[:'(]


I've read in other posts that you need to be in full auto mode whilst some suggested going full manual. I'm really getting frustrated as it's also a bit time consuming doing PP.


Another thing, someone has told me that you can actually assign a custom image for CWB by setting it up directly thru the cam's memory via software. He can actually adjust from AWB to CWB without having to set up the CWB image reference again & again.


Can someone please help?


***How do I determine if the photo I've taken is properly exposed & what is correct exposure BTW? thanks in advance guys![:'(]