ARRI ALEXA Series User Manual

Wedge Adapter WA-1 and Quick-Release Plate QR-HD-1 45
8.8 Wedge Adapter WA-1 and Quick-
Release Plate QR-HD-1
The WA-1 can be mounted at the same position as a bridge plate. It has
a dove tail that slides into the counter part of a quick-release plate, like
the ARRI QR-HD-1. The quick-release plate has a pin at its back, which
fits into the pin receptacle at the back of the camera base.
Figure 26: ARRI QR-HD-1
8.9 Leveling Block LB-1
The Leveling Block LB-1 attaches to the bottom of the ALEXA in the pin
receptacle on the back foot. It prevents the camera from resting on a
rear-mounted battery when a bridge plate is attached and the camera is
placed on a flat surface.
Attach the LB-1 by inserting its pin into the pin receptacle at the end of
the shoulder arc in the camera base. Twist the knob clockwise to
tighten.
Figure 27: Leveling Block LB-1

ARRI ALEXA Series Specifications

General

Dynamic Range	14+ stops
Resolution	4.5K (ALEXA LF), 6.5K (ALEXA 65)
Recording Formats	ARRIRAW, Apple ProRes
Lens Mount	PL mount
Viewfinder	Optional EVF (Electronic Viewfinder)
Sensor Size	Super 35 (most models), Large Format (ALEXA LF, ALEXA 65)
ISO Range	EI 160 - EI 3200 (Base ISO 800)