The ExpoDisc (67mm) tabletop which is slightly smaller than

which is slightly smaller than standard carry-on size- but check with your airline before taking our word for it

The movements are easily zeroed

Image quality is good

with some cosmetic wear from use

Includes a single internal divider and a shoulder strap

The ExpoDisc (67mm) tabletop which is slightly smaller thanThe ExpoDisc is a clip on (or hold in front of) diffuser designed to facilitate setting custom white balance. Rather than hauling around a gray card, or trying to find a plain white surface, or hoping that your camera guesses correctly, you can toss this in front of your lens and lock in an accurate custom white balance in seconds. Bonus: if you actually use this on a lens with a 67mm filter thread, it can replace your lenscap. Yeah, its just a fancy