Step 1:

if you are wearing glasses, take them Off

Step 2:

Place a Credit Card beneath your nose

For the most accurate calculation, use a card sized 3.370 x 2.125 inches. (85.60 x 53.98 mm)this is the standard size of a credit card.

if you use a credit card for your image, please make sure you use the side with the strip facing the camera and edit out any sensitive information after you have taken the photo.