RICOH KR-5

Name: Ricoh KR-5
Brand: Ricoh

The Ricoh KR-5 is an entry-level 35mm single-lens reflex (SLR) camera introduced in 1975 as part of Ricoh's push into the K-mount SLR market. It was built for amateurs who wanted an affordable, reliable manual-focus SLR. The construction is solid and the feature set is simple, which made it an easy way into interchangeable-lens photography in the mid-1970s.

Overview

Ricoh released the KR-5 in 1975 as the economical model in its growing line of K-mount SLRs. It followed the earlier KR-5 Super and KR-5 Super II, but it was the more budget-minded option. The target was novice photographers and students who needed basic, dependable function without advanced automation or premium materials. Ricoh was going after a share of the fast-growing consumer SLR market, which Pentax, Canon, Nikon, and Minolta dominated at the time.

The KR-5 has a fully manual exposure system and a mechanical vertical-travel focal-plane shutter. Speeds run from 1 second to 1/1000 second, plus Bulb. It uses the Ricoh K-mount (also known as the Pentax K-mount), so it takes a wide range of K-mount lenses from Ricoh, Pentax, and other licensed makers. That cross-compatibility was a big selling point, since buyers could draw on a broad pool of optics. There is no aperture-priority or shutter-priority automation. You set everything by hand.

The KR-5 has a polycarbonate-covered metal chassis, which kept weight and production costs low while still holding up well. The pentaprism viewfinder is fixed, with a split-image rangefinder focusing aid and a microprism collar. Metering is center-weighted and uses a cadmium sulfide (CdS) cell in the prism housing. It runs on a single PX625 (1.35V mercury) battery or an equivalent modern replacement (e.g., Wein Cell or an adapter with 1.5V alkaline). Metering is coupled to the lens aperture by a mechanical linkage, so it needs stop-down metering with non-K lenses or lenses without an automatic diaphragm pin.

The KR-5 sits in the middle of Ricoh's SLR lineup, above the even simpler KR-3 and below the more advanced KR-10 and KR-10 Super. It lacks the shutter-priority automation of the KR-10 and the premium build of the KR-5 Super II, but it offered a good balance of function and price. Newer models replaced it in the early 1980s as Ricoh moved toward more automated electronics. The KR-5 stayed in production until approximately 1982, which points to steady demand in the budget SLR segment.

Specifications

Specification	Value
Type	35mm SLR
Film Format	35mm (135 cartridge)
Years Produced	1975–1982
Lens Mount	Ricoh K-mount (compatible with Pentax K, KA, and later variants via mechanical linkage)
Shutter	Vertical-travel focal-plane shutter; speeds 1s – 1/1000s + B
Metering	Center-weighted CdS metering, stop-down via ASA/Meter switch
Exposure Modes	Manual exposure only; no automatic modes
Viewfinder	Fixed pentaprism with split-image/microprism focusing screen
Dimensions	Approx. 140 × 85 × 48 mm; Weight: ~590 g (body only, no battery)

Key Features

K-mount compatibility: Full support for K-mount lenses with automatic diaphragm coupling, enabling seamless use of a wide range of manual-focus lenses.
Mechanical reliability: Fully mechanical shutter operation at all speeds except 1/1000s and 1/500s (which require battery power for timing), ensuring functionality even with dead batteries at slower speeds.
Stop-down TTL metering: Center-weighted CdS metering system provides accurate exposure readings when lenses are stopped down, activated via the ASA/Meter switch on the lens mount.
Split-image focusing screen: Integrated split-image rangefinder and microprism collar assist in achieving precise manual focus.
Compact and lightweight design: Polycarbonate body shell reduces weight while maintaining structural integrity, ideal for casual and travel photography.

Historical Context

The Ricoh KR-5 was launched during a pivotal era in 35mm SLR development—the mid-1970s—when manufacturers were rapidly transitioning from all-mechanical designs to electronically controlled systems. Ricoh, already known for its compact cameras and lenses, sought to strengthen its presence in the SLR market by offering competitively priced models that leveraged the emerging K-mount standard. The K-mount, originally introduced by Pentax in 1975, became a de facto industry standard for manual-focus SLRs, and Ricoh’s adoption of it allowed for broad lens compatibility, a key advantage in a crowded market.

Competitors to the KR-5 included the Pentax K1000 (released in 1976), the Olympus OM-1 (1972), the Minolta SRT-101, and the Canon FTb. The Pentax K1000 became the best-known budget SLR and often overshadowed the KR-5 in Western markets. The KR-5 held its own where Ricoh had strong distribution, particularly in Asia and parts of Europe. It was marketed as a "student camera" or "first SLR," with durability, ease of use, and affordability as the pitch. It lacked the brand cachet of Pentax or Nikon, but it earned a reputation for reliability and straightforward operation.

Collectibility & Value

Today the Ricoh KR-5 is a modestly collectible camera. Buyers are mostly vintage SLR enthusiasts, K-mount historians, and photographers putting together mechanical film camera kits. It is not rare, since it was produced in significant numbers throughout the late 1970s and early 1980s. Well-maintained examples with clean viewfinders and working shutters are getting harder to find, though. Current market value typically ranges from $50 to $120 USD, depending on condition, included accessories, and lens bundle.

When buying a KR-5, check the shutter at all speeds and listen for mirror slap noise or sluggish movement. Verify that the light meter responds, though CdS cells often degrade over time. The original PX625 mercury cell is obsolete, so users need modern substitutes like zinc-air batteries or voltage adapters to get accurate metering. Fungal growth inside the viewfinder prism and degraded light seals are common in older units, especially ones stored in humid places. The mechanical design makes the KR-5 relatively easy to service, but replacement parts are not widely available.

Similar Cameras

Pentax K1000
Olympus OM-1
Minolta SRT-101
Canon FTb
Yashica FR-I

Repair & Maintenance

The Ricoh KR-5 uses a 1.35V PX625 mercury battery (or modern equivalent) for the light meter. Shutter speeds 1/500s and 1/1000s also need battery power for timing, while slower speeds are fully mechanical. Common problems are degraded light seals, stiff shutter curtains, and oxidized battery contacts. The CdS meter cell may lose sensitivity over time and give inaccurate readings. Repair difficulty is moderate. The design allows disassembly with standard tools, but the internal layout is compact, and replacement parts (such as shutter curtains or meter cells) are scarce. Routine maintenance includes cleaning the mirror and focusing screen, checking the film advance mechanism, and replacing light seals during CLA (clean, lubricate, adjust) services.

Market Value

┌──────────────────────────────────────────────────────────────────────────┐
│ RICOH KR-5                                                      Nov 2026 │
├──────────────────────────────────────────────────────────────────────────┤
│ High      $549                                    Latest             $76 │
│ Median    $50                                     Trend                — │
│ Low       $25                                     Volume          ~14/mo │
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│   $600 ┤                                                                 │
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│   $343 ┤                                                .                │
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│     $0 ┤.       ............. ....... . . ...  .. ...        .   ........│
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│         2026-01                      2026-05                      2026-08│
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