OConnor Mattebox O-Box
consists of :O-Box WM with Wide Mini Sunshade, Top Flag, two 4 x 4" Filter Frames, two 4 x 5.65" Filter Frames and a 15mm LWS rod bracket.https://www.photocineshop.com/en/products/oconnor-o-box-BRQ4MC?cat=273
The OConnor O-Box WM is a two-stage mattebox designed around the 16:9 format full-size sensor. A wide-angle system, it accommodates lenses up to 18mm (and in some cases wider).
This precision mechanical device adeptly accepts up to three
filters: two in top-loading filter frames (two 4x4" and two 4x5.65" frames are included). The rear frame is rotatable 360 degrees. A third 138mm round filter sleekly fits in the optional bellows ring.
Constructed of OConnor’s proprietary rugged composite, the sunshade is lightweight yet substantially stronger and more impact resistant than existing units. This translates to fewer sunshade replacements arising from the rigors of professional production
The LWS bracket that comes with the mattebox is simply removed via 2 Allen screws (3mm Allen / Hex key)
The O-Box is the first commercially produced mattebox to have
integrated handgrip interfaces. While traditionally operators have
used the sunshade as a handle, this precarious handling is remedied
by OConnor’s O-Grips that can be conveniently attached directly to
the O-Box support cage in three locations: camera left, right or
bottom center. The bottom center position is particularly useful for
small setups such as HDSLR cameras when the O-Grips turn into a
pistol-style grip for the operator’s right hand while the follow focus
handwheel is in their left.