ARRI ALEXA Series User Manual

154 Operation of the Camera
 To create a centered frame line with a center cross as in the
example, a total of six lines is necessary.
 To calculate the position of a line for a given aspect ratio, use the
following formulas:
− horizontal lines for aspect ratios >1.78 (e.g. 1.85): [1-
(1.78/Aspect)]/2=distance from bottom or top
− vertical lines for aspect ratios <1.78 (e.g. 1.33): [1-
(Aspect/1.78)]/2=distance from left or right

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)