TOPCON SUPER D

Name: Topcon Super D
Brand: Topcon

The Topcon Super D is a professional 35mm single-lens reflex (SLR) camera introduced in 1973 as the flagship of Topcon's RE-mount SLR lineup. It was built for advanced amateurs and professionals. It has full-aperture through-the-lens (TTL) metering, a mechanical build, and works with the full Topcon RE Auto lens system.

Overview

The Super D came out while manufacturers were refining TTL metering and improving ergonomics for professional use. It succeeded the highly regarded Topcon RE Super and the Super DM, and it was the high point of Topcon's mechanical SLR engineering before the company shifted focus away from the professional market. Topcon positioned it as a precision instrument: reliable, accurate in exposure control, and compatible with a wide range of high-quality RE Auto lenses.

The full-aperture TTL metering system meters at the lens's maximum aperture. That gives a brighter view and lets you calculate exposure before stopping down. Add a large, bright viewfinder and a horizontal-travel cloth focal-plane shutter, and the Super D suited photojournalism, studio work, and field photography. The shutter is fully mechanical, with a battery-independent 1/125 sec. flash sync speed, so it works even without power.

The Super D sat at the top of Topcon's line. Over the RE Super and Super DM it had a redesigned pentaprism housing with a more ergonomic eyepiece, enhanced metering circuitry, and a refined film advance mechanism. Topcon's declining market presence in the mid-1970s limited its international distribution, particularly in North America, where it faced stiff competition from Nikon, Canon, and Pentax.

Specifications

Specification	Value
Type	35mm Single-Lens Reflex (SLR)
Film Format	35mm (135)
Years Produced	1973–1978
Lens Mount	Topcon RE Auto (bayonet)
Shutter	Horizontal-travel cloth focal-plane; speeds 1 sec to 1/1000 sec, plus B; flash sync at 1/125 sec
Metering	TTL full-aperture center-weighted metering via CdS cell
Exposure Modes	Manual exposure with stop-down metering option; no aperture-priority or autoexposure
Viewfinder	Fixed pentaprism with microprism collar and split-image rangefinder spot; approx. 94% coverage; 0.95x magnification (with 50mm f/1.4)
Dimensions	148 × 95 × 55 mm; weight approx. 720 g (body only, no battery)

Key Features

Full-aperture TTL metering: Enables bright viewfinder viewing and accurate exposure without stopping down, using compatible RE Auto lenses with automatic diaphragm coupling.
Mechanical reliability: Fully mechanical shutter operation at all speeds except metering; functions without battery power.
RE Auto lens compatibility: Works with the full range of Topcon RE Auto lenses (e.g., 50mm f/1.4, 35mm f/2, 135mm f/2.8), known for their optical quality and robust build.
Precision viewfinder: High-magnification fixed pentaprism with split-image and microprism focusing aids for accurate manual focusing.
Interchangeable focusing screens: Optional screens available for specialized applications (e.g., microprism, matte, grid).

Historical Context

Topcon launched the Super D in 1973, while Japanese SLR makers were rapidly adding electronics and automation. The Nikon F2 (1971) and Canon F-1 (1971) were already the professional benchmarks, with modular designs and extensive accessory systems. Topcon was respected for its optical and mechanical engineering, but it struggled to match the global marketing and distribution of its rivals.

The Super D was Topcon's last serious attempt at the high-end professional SLR market. It carried over lessons from the RE Super and Super DM, particularly in refining the metering system and improving ergonomics. By the mid-1970s, though, Topcon's parent company, Tokyo Kogaku, began shifting focus toward industrial optics and medical equipment, which meant reduced investment in camera development. Production of the Super D ceased around 1978, and no direct successor was introduced.

Outside Japan, the Super D stayed a niche product. Limited availability in Western markets and the dominance of Nikon and Canon meant it never achieved widespread adoption among professionals. Collectors and vintage camera enthusiasts regard it as one of the most refined mechanical SLRs Topcon ever produced.

Collectibility & Value

Collectors consider the Topcon Super D rare and desirable, mainly for its professional build quality, optical performance, and status as Topcon's last high-end mechanical SLR. Units in good working condition typically sell for between $300 and $600 on the secondary market. The price depends on cosmetic condition, functionality, and included accessories such as the original case, manuals, or matched focusing screens.

When buying a Super D, check the shutter at all speeds, the accuracy of the meter (which relies on a 1.35V mercury battery or modern substitute), and the light seals and foam light trap around the mirror box. Common problems are degraded light seals causing light leaks, stiff or sticky shutters from dried lubricants, and CdS cell failure leading to inaccurate metering. Replacement parts are scarce, so mechanical serviceability matters.

The Super D had a limited production run and saw little widespread use, so it is rarer than comparable Nikon or Canon models from the same era. The high quality of the RE Auto lenses adds to its value, and many of those lenses are now sought after for their sharpness and build.

Similar Cameras

Nikon F2 Photomic (1971) – Professional Nikon F-mount SLR with interchangeable viewfinders and TTL metering; direct competitor in the pro market.
Canon F-1 (1971) – Rugged, modular 35mm SLR with interchangeable finders and screens; Canon’s flagship mechanical camera.
Pentax Spotmatic F (1973) – Popular full-aperture metering SLR with M42 screw mount; more consumer-oriented but similarly timed.
Minolta SRT-101 (1966, still in production) – Known for advanced CLC metering and solid build; widely exported and used.
Yashica TL Electro-X (1973) – Electronically controlled aperture-priority SLR; represents the shift toward automation that the Super D avoided.

Repair & Maintenance

The Super D uses a 1.35V mercury PX625 battery (now obsolete) for its CdS meter. Modern equivalents include Wein Cell (zinc-air) or adapters for SR44 batteries, though voltage differences may require meter recalibration. The shutter is fully mechanical and needs no battery, so the camera still works with a dead or missing one.

Common maintenance issues include deteriorated light seals (replace them to prevent light leaks), mirror bumper foam disintegration, and hardened shutter blade lubricant, which can cause slow shutter speeds or uneven exposure. Check the meter coupling mechanism with RE Auto lenses for smooth engagement. Service support and spare parts are scarce, so repair should go to technicians experienced with vintage Japanese SLRs. Lubrication and cleaning of the film transport and shutter mechanism are recommended if the camera has been in long-term storage.