I purchased a graycard, specifically a Novoflex 15x20cm (~ 6x8") card that is white on one side and 18%? gray on the other side.
However, it's a bit too large to comfortably fit into jacket pocket or my photo bag, so I'm wondering...
If I cut the card in half, or even smaller, will I be ruining any of its properties?
I'm thinking more about the physical properties than it's photo properties. For instance, I'm wondering if the outer edge of the full card has been treated so that the glue that holds the two cards (I'm assuming they have glued two cards of different colors together) isn't exposed, but if I start cutting it up, I will be exposing glue that can react to humidity, etc.
I was thinking of cutting the card first in half, to get 2 pieces, 3x4", and then cutting one of those in half again, to get 3 pieces, 1 3x4" piece, and 2 1.5x2" pieces, they would probably fit my usage better.
And about the photo properties of the card, will reducing their size reduce their usefulness. For instance, does a my camera, a Canon EOS 60D, require a large area to properly measure the white balance or whatnot, so that if I reduce the cards size too much, I reduce the distance I can be from the card when taking a picture of it?
Basically, I would like advice on whether cutting up the card will at all make it unusable.