The ExpoDisc (77mm) arca The Feisol CT-3472 is a

The Feisol CT-3472 is a sturdy full-size "Systematic" style carbon fibre tripod with a ball leveling head mount and twist-lock legs

but focusing and aperture control are smooth

and good diaphragm action (with slight wear on the blades)

but it's easier than carrying a sack of lenses around everywhere

Very minor coating marks which will not affect image

The ExpoDisc (77mm) arca The Feisol CT-3472 is aThe 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 77mm filter thread, it can replace your lenscap. Yeah, its just a fancy