This DP3000 Matte box (M3) is universally designed to accommodate all DSLR's and camcorders and it compatible with any industry standard 15mm rail system.The matte box gives provides the user full lighting control and prevents glare and lens flare with its foldable french flags and adjustable side wings.It features precision engineered Swing-Away mechanism for quick lens changes.It also provides a means of using filters and one of the 180 degrees rotating filter trays and much more!This matte box will be your optimal.It will greatly facilitate your digital life. Swing Away Type: For changing lenses quickly, this unit features a swing away design at a 90 degrees and allows height adjustable. Instead of moving the mounting the matte box out, (which may be blocked by other rig accessories, or require rod extensions to fit), it can simply be slid outwards by just releaseing one blue button. It comes with 2pcs of filter trays,and 1pc of the filter tray can be rotated by 180 degree. It is for 4x4" filter up to 4mm in thickness, which enable some high-quality filters to be used. Coming with 2pcs of 15mm 20cm length rods.There are 4x 15mm compatible rod holes on the swing-away bracket,you can mount the 15mm rod according to your need to extend more accessories. There comes 3pcs of flags,and both are foldable.Convenient for storage.Clip-in type,just release the lock button a little,then you can take the flags off with no boring releg the buttons all off to process.Excellent extinction treatment inside of the matte box, can effectively block glare and reflected light. Specification Height can be adjusted by 35mm. Equipped with 4PCS different size donuts Compatible with wide angle lenses. Material: Matel+Plastic. Weight: 840g. Package Including:1 x DP3000 Matte Box 4 x Donuts 1 x Top Flag 2 x Side Flags 2 x Filter Trays 1 x Wrench? 2 Dual-purpose filter trays, supporting 4x4" filter sizes (One of the trays allow rotating 180 degrees). ? A set of 4 “donut” rings are included.(Size at 103mm,76mm,64mm,51mm).By fitting one of these rings, light from the rear of the matte box can be blocked out, leaving only the camera lens protruding through. Donuts are slightly flexible, and the four sizes range to fit almost any lens diameter. ? For changing lenses quickly, the unit features a swing away design at a 90 degrees and allow height adjustable. Instead of moving the mounting position of the matte box, (which may be blocked by other rig accessories, or require rod extensions to fit), it can simply be slid outwards with just one screw to undo. ? The kit includes one French flag, and two adjustable side wings. Each of the three flaps can be positioned and locked in place so as to suit different focal lengths by providing the maximum amount of shading without getting in the way of the shot. ? Universal design for all camcorders and DSLRs & Industry standard 15mm supporting rods, center-to-center rails distance 60mm.Country of Origin: China. Manufacturer: Foto4easy. Date First Available: November 16, 2014. Is Discontinued By Manufacturer: No. Best Sellers Rank: #37 in Camera Lens Matte Boxes. Customer Reviews: 4.1 out of 5 stars 47 ratings 4.1 out of 5 stars. : B07GB4GJ1V. Item Weight: 1.1 pounds. Product Dimensions: 10.8 x 9.4 x 5.7 inches.