Customers most agreed on the following attributes:
Comments about Adorama Adorama / Delta Gray Cards Exposure Aid, Pack Of Two (2):
So far I've used these with my indoor pix. It was cheaper to buy the gray card to calibrate my Nikon D50 to my 5500k lights than it was to buy software that can work with NEF files.
[6 of 7 customers found this review helpful]
Comments about Adorama Adorama / Delta Gray Cards Exposure Aid, Pack Of Two (2):
Don't listen to anyone about this gray card not great for digital white balance. Gray is neutral in all aspects with digital photography, Therefor this card is perfect for setting the white balance. You need to shoot the gray card for each type of scene with the lights that you will be using. I use these for professional wedding shots, Glamour shots and all other model shots. Gray is better than setting the white balance to a white card or black card. The 18% reflective is also a myth, The perfect reflectiveness is 12%. But 18% is close enough, That you can't tell a difference.
[5 of 7 customers found this review helpful]
Comments about Adorama Adorama / Delta Gray Cards Exposure Aid, Pack Of Two (2):
These cards are nice, heavy duty cardboard and quite large. They could be cut into pieces if desired. My problem with them is that the back side isn't white and therefore can't be used for digital white balancing. I tried using the gray side for that purpose and it doesn't work. They would be so much more useful with little or no additional cost.