Bell & Howell Filmo Straight Eight (1935)

At 24 ounces, it fits in the palm like a hefted promise—light for its time, dense with precision, and wrapped in baked enamel that still turns heads.

Overview

The Bell & Howell Filmo Straight Eight wasn’t just another 8 mm camera dropped into the 1935 market—it was a calculated bet on a format that never quite caught on. Marketed as a single 8mm movie camera, it used Bell & Howell’s proprietary “Straight Eight” system, a direct alternative to Kodak’s Double-8 format. While Kodak’s method split developed 16mm film down the middle to yield two 8mm strips, Bell & Howell’s approach used pre-split 8mm film—specifically their “Filmospan”—loaded in daylight-ready cartridges containing 30 feet of usable film. That simplicity in loading was a selling point: no darkroom required, just pop in the spool and go. But the format’s exclusivity became its Achilles’ heel.

Introduced in July 1935 after more than three years of internal development, the Filmo Straight Eight arrived with the engineering pedigree Bell & Howell was known for. The body, a solid cast aluminum alloy, felt substantial without being cumbersome. Its dimensions—1 3/8 by 3 by 5 inches—made it compact for handheld use, though not pocketable. The richly baked brown enamel finish with black and plated trim gave it a distinctive, almost ceremonial presence, standing out from the more utilitarian designs of contemporaries. It was built for reliability, and

Two variants emerged quickly: the 127-A, offering frame rates from 8 to 32 images per second, and the 127-B, which doubled that range to 16–64 i/s, catering to more advanced users who needed slow-motion capture. The spring-wound mechanical drive delivered consistent transport, critical for stable exposure and smooth playback. A standard 12.5mm f/2.5 anastigmat lens with universal focus was mounted up front, delivering sharp, contrast-rich images for the era. The optical viewfinder included additional frames, likely for composition guidance across different focal lengths or aspect ratios, though exact details on parallax correction or magnification remain undocumented.

What made the Filmo Straight Eight technically interesting was its lens mount system. Rather than a threaded or bayonet twist, it used a spring-lock mechanism: pressing two buttons simultaneously released the lens for quick swap-out. This was unusually advanced for a consumer-grade 8mm camera in 1935, suggesting Bell & Howell envisioned a modular ecosystem. Later lenses from the Filmo 70 and 75 series were reportedly adaptable, reinforcing that vision. But the ecosystem never fully materialized—because the film format faltered.

Specifications

Key Features

24-Ounce Cast Aluminum Body

Weighing in at just 24 ounces, the Filmo Straight Eight struck a rare balance for its era: robust enough to withstand field use, yet light enough for extended handheld operation. The cast aluminum alloy body wasn’t just about weight savings—it provided rigidity that minimized film-path misalignment, a common issue in cheaper spring-driven cameras. This construction method, typical of Bell & Howell’s professional-grade ethos, contributed to the camera’s reputation for reliability. The metal also acted as a heat sink and vibration damper, subtle benefits that paid off in consistent frame registration and reduced wear over time.

Baked Brown Enamel Finish with Plated Trim

The finish wasn’t merely cosmetic. The rich, oven-baked brown enamel was durable and resistant to chipping, a practical upgrade over painted or lacquered surfaces common on other 1930s cameras. Combined with black and plated metal fittings, it gave the camera a cohesive, almost instrument-like appearance. Whether by design or accident, the color also helped the camera stand out in promotional materials, reinforcing Bell & Howell’s premium positioning.

Spring-Lock Lens Mount System

Pressing two buttons to release the lens was a novel approach in 1935. Unlike threaded mounts that could seize or bayonets that required precise alignment, the spring-lock mechanism allowed for tool-free, rapid lens changes. This wasn’t just convenience—it hinted at a modular philosophy ahead of its time. The fact that later Filmo 70 and 75 lenses were adaptable suggests Bell & Howell intended users to build a lens library. In practice, however, the proprietary film format limited the user base, and

Daylight-Loadable Filmospan Film System

The Filmospan film cartridge was one of the camera’s most user-friendly innovations. With 30 feet of usable panchromatic, fine-grain, reversal film pre-loaded and sealed for daylight loading, it eliminated the need for a dark bag or changing tent. Two additional feet were included for leader and take-up, ensuring smooth threading. The film was pre-split—single 8mm—so no post-processing splitting was required, unlike Kodak’s Double-8. While technically elegant, this exclusivity backfired: Filmospan was only made by Bell & Howell, and

EE Mode with Selenium Exposure Control

The inclusion of an “EE” (Exposure Easy) mode with selenium cell metering was a significant step toward automation. The selenium cell measured ambient light and adjusted the aperture accordingly, reducing the need for manual calculation. This was particularly valuable for amateur filmmakers unfamiliar with exposure values. However, selenium cells degrade over time, losing sensitivity or failing entirely—so functional EE systems today are rare. When working, though, No aperture range is documented, but the f/2.5 lens suggests a multi-blade iris was likely controlled by the EE linkage.

Historical Context

The Filmo Straight Eight launched into a format war it was destined to lose. The Single 8mm (Normal-8) film format was introduced to the market by Eastman-Kodak in March 1932, and by 1935 it had gained broad market acceptance. Bell & Howell’s decision to pursue a competing, proprietary single 8mm system in 1935 seemed defiant, even arrogant. Despite the camera’s technical merits, the lack of compatible film stock outside Bell & Howell’s own Filmospan limited its appeal. By December 1935—just months after the Straight Eight’s announcement—Bell & Howell conceded, releasing the Filmo 134 “Double Run,” a camera that embraced Kodak’s Double-8 standard. This abrupt pivot speaks volumes: the Straight Eight was a well-engineered misstep.

Still, it wasn’t without influence. Alongside the Agfa Movex 8 in Germany, the Filmo Straight Eight represented one of the few serious attempts to establish an alternative 8mm standard. Some were used to transfer 100-foot reels of news footage to 8mm for home viewing, a practice noted in archival trade documents. But as Double-8 became the de facto standard, the Straight Eight faded into obscurity—preserved now mostly in collections and occasional eBay listings.

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• Bell & Howell Filmo 70 (1923)
• Bell & Howell Filmo Auto-8 (1940)
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• Bell and Howell Filmo 70DR
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