ARRI LMB-25 User manual

USER GUIDE
Lightweight
Matte Box LMB-25

32
Version 4/2013
Content Introduction
Lightweight Matte Box LMB-25
The LMB-25 is a lightweight clamp-on matte box designed to hold two to three
4“ x 5.65“, 4“ x 4“ or 5“ x 5“ filters on lenses up to 143 mm in diameter.
The widest Master Prime lens the LMB-25 matte box will cover with
two 4“ x 5.65“ filters in the ANSI S35 format is 14 mm.
Table of Contents
INTRODUCTION .........................3
OVERVIEW .............................4
INSTRUCTIONS ..........................6
Fit Clamp Adapter .........................6
Insert Filter Frame .........................8
Fit 2- or 3-Filter Stage Guides ................10
Fit Top/Bottom Flag .......................14
Adding Optional Bottom Flag Holders .........16
Remove Hood ...........................18
Secure Matte Box for Crane Use .............20
Mounting and Usage of Tray Catcher ..........22
Adding Accessory Attachment ...............24
Inserting Mattes .........................26
LEGAL DISCLAIMER .....................28
CONTACTS ............................29

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Overview
LMB-25 OVERVIEW
4
5
3
7
9
2
6
10
11
1
8
MAIN UNIT
1 LMB-25 Basic Module ...................... K2.66177.0
Includes pair top/bottom flag holders (K2.66179.0)
ACCESSORIES
2 2-Filter Stage Guide ........................ K2.66176.0
3 3-Filter Stage Guide ........................ K2.66175.0
4 Filter Frame 4“ x 5.65“ / 4“ x 4“ ............... K2.66133.0
5 Filter Frame 5“ x 5“ ........................ K2.65183.0
6 Light Shield ............................... K2.47244.0
7 Top/Bottom Flag Holders (pair) ................ K2.66179.0
8 3/8“ Accessory Attachment .................. K2.66178.0
9 Tray Catcher .............................. K2.66202.0
10 Set of Masks for LMB-25 (5x) ................. K2.66022.0
11 LMB-5/15/25 Clamp Adapters - All cross compatible
n Clamp Adapter Ø 143mm .................. K2.65223.0
(Compatible with R9 Clamp-On Rings)
n Clamp Adapter Ø 136mm .................. K2.66218.0
n Clamp Adapter Ø 134mm .................. K2.66217.0
n Clamp Adapter Ø 130mm .................. K2.65103.0
(Compatible with R7 Clamp-On Rings)
n Clamp Adapter Ø 125mm .................. K2.66219.0
n Clamp Adapter Ø 114mm .................. K2.47240.0
n Clamp Adapter Ø 110mm .................. K2.52097.0
n Clamp Adapter Ø 104mm .................. K2.47253.0
n Clamp Adapter Ø 95mm ................... K2.47241.0
n Clamp Adapter Ø 87mm ................... K2.47242.0
n Clamp Adapter Ø 80mm ................... K2.47243.0
COMPATIBLITY
The LMB-25 is compatible with various existing ARRI
filter frames, filter stage guides and clamp adapters.
* Filter Frame 4“ x 5.65“ / 4“ x 4“ ............. K2.66133.0
* Filter Frame 4“x 4“ ....................... K2.47104.0
* LMB-15 Matte Set (4x) HD 16x9 and 16mm .... K2.66021.0
* LMB-15 Matte Set (4x) 35mm ............... K2.66022.0
9
* Discontinued items. Not available for sale from ARRI.
* Item has been updated while carrying on the same item number.
87
*
*

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INSTRUCTIONS | Fit Clamp Adapter
1 To fit a clamp adapter, position it through the locking
thumbscrews so it sits flush with the filter stage.
2 Slide the clamp adapter upwards.
3 Lock the clamp adapter using the two locking
thumbscrews positioned at the rear of the filter stages.
Fit Clamp Adapter
The LMB-25 clamp-on matte box adapts to various lens diameters via a
series of interchangeable clamp adapters.
1 2
3
| Fit Clamp Adapter
INSTRUCTIONS

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INSTRUCTIONS | Insert Filter Frame
Insert Filter Frame
Two or three filter frames are typically inserted from the top of the
matte box with the clamp adapter fitted. Filter frames can be inser-
ted from the bottom of the matte box if needed.
INSTRUCTIONS | Insert Filter Frame
1 2
3

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INSTRUCTIONS | Fit 2- or 3-Filter Stage Guides
Fit 2- or 3-Filter Stage Guides
The LMB-25 can hold two or three filters, depending on requirements. Some
situations will require holding three filters, although greater lens coverage is
achieved with a two-filter configuration.
INSTRUCTIONS | Fit 2- or 3-Filter Stage Guides
1 2
3
1 Remove the rear clamp adapter.
(Refer to Pos. 1.)
2 Turn the module face up and loosen the four screws
securing the front hood to the main plate.
3 Remove the front hood.

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INSTRUCTIONS | Fit 2- or 3-Filter Stage Guides
INSTRUCTIONS | Fit 2- or 3-Filter Stage Guides
4 Remove the side filter stage guides by loosening
the four captive screws.
5 Swap the filter stage guide to the required one
(e.g. 3-filter tray stage guide).
4 5

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INSTRUCTIONS | Fit Top/Bottom Flag
INSTRUCTIONS | Fit Top/Bottom Flag
Fit Top/Bottom Flag
Adjust Flag Friction
1
1
2
1 Slide the top/bottom flag onto the flag holders of the
LMB-25.
2 Tighten the locking knobs.
1 Top/bottom flag friction adjustment can be set using the
flag friction knob. The flag can be locked in position using
the same knob.
Note: The top/bottom flag can be folded onto the hood to offer
protection to the lens when the camera is being moved on set.

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INSTRUCTIONS | Adding Optional Bottom Flag Holders
INSTRUCTIONS | Adding Optional Bottom Flag Holders
Adding optional Bottom Flag Holders
1 2
1 If a bottom flag is needed, the top/bottom flag can be
fitted to the bottom of the matte box using two optional
flag holders.
Secure each of bottom flag holders to the bottom of the
basic module with two screws.
2 Optional pair of bottom flag holders (Ident No.: K2.66179.0)

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INSTRUCTIONS | Remove Hood
INSTRUCTIONS | Remove Hood
Remove Hood
The front hood can be removed easily on set for special applications such
as macro work, helicopter shots, or when a flare effect is desired.
1 2
1 Turn the module face up and loosen the four screws
securing the front hood to the main plate.
2 Remove the front hood.
Note: The screws are captive so they stay attached to the hood
when in storage to reduce the chances of losing them.