Arri has officially released their new 6×6 compact mattebox, the MB28. It is similar to the MB20-II in design, and is far more compact, lightweight, and less expensive than the supermax MB14.
The MB28 features three 6.6×6.6 trays. The front two rotate together, and the rear rotates independently. Top and side flags are included, as well as a swingaway arm for 19mm or 15mm studio rods and full clearance on even the Optimo 24-290.