Posted by a reviewer on Amazon

I cant ever remember the white balance being off and if it was when i checked in the software is was very minimal

Posted by a reviewer on Amazon

I shoot nikon so you have to fill the entire frame with youre gray card in order to set a custom white balance

Posted by a reviewer on Amazon

But it is a pain in the butt to carry around a fullsized card and find somebody to hold it for you especially if youre using off camera flash as i always do

Posted by a reviewer on Amazon

In lightroom it is very easy to set your white balance based off of the gray card and if your exposure is way off… you can utilize the blackandwhite cards in photoshop to set your curves

Posted by a reviewer on Amazon

Heres why you need this if youre making a series of photos in the same light take the first one with the gray card in the picture

Posted by a reviewer on Amazon

Then when colorbalancing a photo in photoshop turn on the info panel

Posted by a reviewer on Amazon

Move the mouse pointer to the gray card in the photo

Posted by a reviewer on Amazon

Even if your computer display isnt calibrated using a gray card and getting r g and b about equal will color balance your photo