ARRI ALEXA Series User Manual

Electronic Viewfinder EVF-1 39
Figure 18: EVF cables: KC-150S (center), KC-151S (middle), KC-152S
(outer)
8.3.2 Viewfinder Mounting Bracket
The Viewfinder Mounting Bracket VMB-3 is attached to the camera
using two captive 3mm hex socket head screws on top of the camera at
the front. The VMB-3 features a leveling bubble and two internally
threaded 15mm rods with standard 60mm distance. These can be
exchanged for or extended with standard 15mm rods for mounting
matte boxes, lens motors and the like above the lens if need be.
Attach the EVF-1 to the Viewfinder Mounting Bracket by sliding the
dove tail into the receptacle and closing the lever on the EVF-1.
The position of the EVF-1 can be adjusted by loosening the levers on
the Viewfinder Mounting Bracket, adjusting the position as desired and
closing the levers to retighten.
The EVF-1 can be mounted on the camera-right side by unscrewing the
threaded end cap on the side-to-side adjustment rod, removing the rod
itself and inserting it from the other side. Remember to reattach the
threaded end cap.
Note: Camera-right operation is not possible with the standard EVF cable KC-
150-S. Instead, the longer cable KC-151-S is needed.
Figure 19: VMB-3 on camera

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)