ARRI Arriflex 16SR
A 16mm system camera whose manual runs 113 pages, and every one of them assumes you already know why you bought it.
Overview
The awkward part comes first. The documentation this archive holds is for the ARRIFLEX 16SR 3. The manual is titled "ARRIFLEX 16SR 3," dated "As of: December 1992," and runs 113 pages. The original Arriflex 16SR and the 16SR 3 are different cameras, and the fact sheet has no verifiable material on the non-SR3 version. So what follows describes the 16SR 3 as documented. Nothing here is confirmed for the earlier body.
ARRI itself called this camera a "System-Camera." The 16SR 3 was designed as the center of an ecosystem, not as a standalone body. The manual's table of contents alone names on-board batteries (NC 24/1,2 and NC 24/7 R), chargers (NCL 24 R, Double Charger NCL 24/1,2), a mains unit (NG 12/24 R), a DC/DC converter (24V/12V-22W), bridge plates (BP-6, BP-7 with 15 MM support rods), a shoulder set (S-3), follow-focus devices (FF-3 and a light-weight version), matte boxes (MB-16, MB-17, LMB-2, LMB-3), a lens-control system (LCS), camera control and sync units (CCU-1, ESU-1), remote switches (RS-3, RS-4), and even a heated eyecup (HE-3). That is not a parts list. It is a production system, and the camera is the hub.
The 16SR 3's job was to get out of the way of a working crew. Whether it succeeded, the fact sheet can't say. There are no reviews, no owner commentary and no market data in the research. What exists is the manual, and the manual shows a lot about what ARRI thought was important.
Key Features
Two Mount Options: 54mm PL and 41mm ARRI Bayonet
The manual's chapter 6 is headed, in the source's own slightly awkward capitalization, "54Mm PL-Mount" and "41Mm ARRI Bayonet." These are not conflicting specs. They read as alternative mount configurations the camera could be ordered with or converted to. The PL mount is the one most 16SR 3 shooters will recognize, and the ARRI bayonet is the older ARRI standard. The fact sheet is explicit that these are alternatives rather than a single fixed specification, so be suspicious of any listing that claims one as the only mount. The lens chapter also lists compatibility with both 16mm and 35mm lenses.
Normal 16 to Super 16 Conversion
Chapter 8 of the manual is titled "Conversion from Normal 16 to Super 16." For anyone buying today, this is the most consequential fact in the fact sheet: the 16SR 3 could be converted between the two 16mm formats. A buyer needs to check in person whether a given body has already been converted, because the fact sheet offers no way to tell a converted camera from an unconverted one by serial number or external marking.
Kinematic Film Movement with Registration Pin
The manual's camera-body section describes "the kinematic film movement and registration pin for steadiness." This is the mechanical heart of the camera, the arrangement that holds each frame steady during exposure. ARRI's reputation in this era rested on that steadiness, and the manual treats it as a headline feature rather than a footnote. The fact sheet gives no registration tolerances or frame steadiness figures, so anyone quoting a number is quoting something the documentation doesn't contain.
Mechanically Adjustable Mirror Shutter
The mirror shutter on the 16SR 3 is described as having mechanically adjustable angles, adjusted "using a special key." That key is small and easy to lose, and it turns up missing on used cameras, so check for it. The fact sheet doesn't state the range of shutter angles available, only that they are adjustable and that the adjustment is mechanical rather than electronic. The adjustability matters under flickering light sources, but the specific angles are not documented here.
Fibre Optic Viewing Screens
The camera uses fibre optic viewing screens rather than conventional ground glass. The manual provides an "overview of available fibre optic viewing screens," which implies more than one option. Screens of this type were prized for brightness, which counts when composing through a stopped-down lens in marginal light. The fact sheet does not list screen part numbers or format markings, so a buyer should expect to source screens separately and verify fitment carefully.
3D Swivel Viewfinder with 360° Arm and Diopter Compensation
The viewfinder is described as having "3D swivel, rotation, and image compensation," with a friction adjustment for "the viewfinder arm's 360° positioning." The eyepiece has diopter compensation and can be removed and reattached. The eyecup includes a shutter to block light entry, and can be swapped for a heated eyecup (HE-3) for cold-weather work. The fact sheet gives no viewfinder magnification figure, so anyone quoting one is guessing.
Loop Protector and Film Path Protection
The manual documents "the function and handling of the loop protector to protect film and pressure plate." It is a small, unglamorous part. A damaged loop protector means scratched film. The fact sheet doesn't say whether the loop protector is captive or removable, only that its handling is documented and its purpose is protecting the film and pressure plate.
Time Code System
Chapter 12 covers the time code system in detail: "TC-Indication on display, TC-Input, TC-Output, TC Buffer, TC-Magazine recording unit lens." The maintenance section says the TC-magazine recording unit lens needs periodic cleaning. That suggests the camera could record time code to a magazine-mounted unit rather than only passing signal through, which is useful for sync-sound work. The fact sheet confirms the cleaning procedure exists but not the frame-rate or code format supported.
Video-Assist System and ARRIGLOW Exposure Control
Chapter 11 covers the Video-Assist-System, including mounting and "video optic adjustment." The camera also has a display system and something ARRI called ARRIGLOW, tied to exposure control. The fact sheet doesn't explain what ARRIGLOW actually is or how the display presents information. It only says the manual has a section on "Exposure Control and ARRIGLOW."
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