Cinema Products Corporation CP-16R (1972)

At 15 lbs, it rests on the shoulder like a tool built to last, because it was.

Overview

The Cinema Products Corporation CP-16R is a professional 16mm magnetic sound sync camera, built for 1970s newsrooms where silence, reliability and precision came first. Introduced in 1972 (some sources cite 1973), it quickly became one of the most popular 16mm spinning mirror reflex, sound-silent cameras on the market. It is shoulder-mounted and magnesium-bodied, and it was engineered for documentary work and field durability. It became a staple for ENG (electronic news gathering) crews before video took over. Filmmakers who wanted reliability picked it up too. It is quiet, smooth and entirely mechanical when powered up.

Owners report it handles both single and double system sound recording with ease, which made it a favorite in production environments where sync audio was non-negotiable. The CP-16R shares its design with the earlier CP-16, but adds a true mirrored shutter reflex viewfinder and better portability. It has manual exposure, a built-in light meter, and crystal-sync frame rates. It is not pin-registered. The film transport uses spring-loaded ball bearings and a curved claw following a sine-wave advance cycle.

Specifications

Manufacturer	Cinema Products Corporation
Model	CP-16R
Type	16mm magnetic sound sync camera
Introduction Year	1972
Film Format	16mm, Super16
Lens Mount	CP-mount
Frame Rates	24/25fps crystal sync, 12.5 - 37fps stepped
Exposure	manual, with in-camera light meter
Film EI Setting	manual, 12-400 ASA
Shutter Degree	156/144 bowtie, 170 half moon
Viewfinder	Diopter correction / Full ground glass / exposure needle / battery check / spinning mirror reflex
Sound	yes - 16mm magnetic stripe recording / designed for either single or double system sound recording
Extras	mag audio recording / remote socket
Batteries	18 volt CP battery
Weight	15 lbs
Mounting/Style	shoulder-mount cameras

Key Features

True Mirrored Shutter Reflex Viewfinder

The CP-16R's spinning mirror reflex viewfinder eliminates viewfinder blackout during exposure, which helps when tracking live action. Rotary shutters obscure the image during film advance. The mirrored shutter reflects the image to the viewfinder only when the film is stationary, so the view is continuous and flicker-free. The design is mechanically complex, and it was essential for documentary shooters who couldn't afford to lose sight of their subject.

Three Shutter Configurations: Bowtie and Half-Moon

Three versions of the mirror shutter were produced: 156-degree bowtie, 144-degree bowtie, and 170-degree half-moon. The bowtie variants balance exposure and viewfinder brightness. The half-moon shutter gives a longer exposure time, which suits low light. Owners note that the famous shutter smear problem afflicts all bowtie-shutter CP-16R models, with severity varying between units. The artifact comes from light bleeding during mirror retraction, and it is a known trade-off of the reflex design.

Non-Pin Registration with Sine-Wave Film Advance

The CP-16R does not use pin registration. The gate relies on spring-loaded ball bearings to seat the film perforations, combined with a curved claw that follows a sine-wave film advance cycle. This reduces film stress and improves registration accuracy over traditional intermittent claws. It isn't as precise as a pin-registered camera, but it is a low-maintenance alternative suited for field use.

Based on the Auricon Movement

The CP-16 mechanism is derived from the Auricon camera movement, which earned it the nickname "the ultimate Auricon conversion." That lineage gave it mechanical reliability and sound-silent operation, both critical for sync recording. The design borrows proven engineering instead of starting over, which contributed to its reputation for ruggedness and ease of repair.

Magnesium-Bodied Construction

The camera casing is magnesium, which keeps the weight to 15 pounds while staying durable. That made shoulder-mounted operation practical over extended periods. The metal body also shields against electrical interference and helps dissipate heat during prolonged runs.

Historical Context

Cinema Products Corporation of Hollywood, California introduced the CP-16R as part of a wave of 16mm sync-sound cameras that opened up location filmmaking in the early-to-mid 1970s. Thousands were manufactured and sold for news, documentary, and independent production work. It eventually became the standard for news gathering until video-based ENG cameras displaced it. The CP-16R was exhibited alongside the CP-16, GSMO, and XR35 motion-picture cameras. Its success came from mechanical reliability, quiet operation, and adaptability in the field.

Collectibility & Value

The CP-16R has held steady interest among film enthusiasts and working cinematographers who still shoot on 16mm. In 2006, it sold for approximately $1,500 on eBay. Current listings show a used camera with lens priced at $1,499.99, while complete packages with accessories can reach $3,300. A major concern for collectors is circuit board failure. Replacement boards are unavailable, so working electronics are a key factor in value. The internal blue plastic drive belt is also prone to degradation over time, and replacement is often necessary. Battery packs require periodic re-celling, as original 18-volt CP batteries are no longer manufactured. Functionality with a battery pack is often taken as a sign of a working circuit board, a critical diagnostic step. Conversions to Super16 were available, with overhaul and modification costing around $2,000 in mid-2006. Some refurbishers offer a 6-month parts and labor warranty on serviced units. A 1975 repair manual (202 pages) exists and is available through specialty archives.