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Olympus TCON-300 Teleconverter Lens

The Olympus TCON-300 is a 300mm f/4.5 lens designed for Other mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Olympus TCON-300 Teleconverter Lens

Olympus TCON-300 Teleconverter Lens

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Lens Overview — Olympus TCON-300

The Olympus TCON-300 is a prime telephoto lens built for the Olympus OM mount system, offering a fixed 300mm focal length with a maximum aperture of f/4.5. Designed for full-frame DSLR use, this lens occupies a well-established niche in long-reach telephoto photography, providing a manual focus experience that appeals to photographers who prefer precise, deliberate control over their focusing. At 1,800 grams, the TCON-300 is a substantial piece of glass, which is characteristic of longer telephoto prime lenses and speaks to the optical construction required to deliver 300mm reach.

The lens does not include image stabilization, so photographers will need to account for camera shake when shooting handheld, particularly at longer distances. The Olympus OM mount compatibility makes this lens well-suited for use with Olympus OM-system film and digital bodies, as well as modern mirrorless cameras via appropriate mount adapters. With its manual focus operation and fixed focal length, the TCON-300 rewards patient, methodical shooters who are comfortable working without autofocus assistance.

It is a lens best suited to controlled shooting situations where time can be taken to achieve precise focus.

Key Features — Olympus TCON-300

300mm Teleconverter Lens: The TCON-300 is a teleconverter accessory lens, not a standalone prime — it attaches to compatible Olympus cameras to extend focal length to approximately 300mm equivalent.

Screw-Mount Attachment: Attaches via a filter thread or dedicated adapter to compatible Olympus point-and-shoot or bridge cameras, not an interchangeable OM-mount SLR lens.

Compact Telephoto Reach: Extends the host camera's lens to deliver telephoto reach suitable for wildlife, sports, and distant subjects when used with a compatible body.

Manual Zoom Operation: No independent focus or zoom ring — the teleconverter relies entirely on the host camera's own lens and autofocus system for operation.

Accessory Lens Design: Functions as an add-on optical element rather than a standalone interchangeable lens; not compatible with OM-mount SLR bodies.

No Image Stabilization: Stabilization is dependent entirely on the host camera's built-in system, if present; the TCON-300 adds no independent stabilization.

Lens Specifications — Olympus TCON-300

Olympus TCON-300 full specifications
SpecDetail
Use CasesWildlife, Sports, Birding
Lens TypeTelephoto
FormatFull Frame
Zoom/PrimePrime
Focal Length300mm
Maximum Aperturef/4.5
Camera SystemDSLR
Lens MountOther
AutofocusNo
Focus TypeManual
Image StabilizationNone
Weight1800g

Description — Olympus TCON-300

The Olympus TCON-300 is a 300mm prime telephoto lens designed for the Olympus OM mount system. Built to full-frame coverage standards, it is compatible with full-frame DSLR cameras in the Olympus OM ecosystem. The lens has a maximum aperture of f/4.5 and operates entirely through manual focus, with no autofocus system present.

Image stabilization is not included, making stable support especially important when shooting at this focal length. Weighing in at 1,800g, the TCON-300 is a weighty optic that benefits from tripod or monopod support during use. Its prime design means there is no zoom range to adjust — the focal length is fixed at 300mm, requiring the photographer to physically reposition to change composition.

The Olympus OM mount means this lens can be paired with OM-compatible camera bodies or adapted to other systems using a suitable mount adapter.

Pros — Olympus TCON-300

  • ✓Fixed 300mm focal length provides dedicated long-reach telephoto capability
  • ✓Maximum aperture of f/4.5 allows for usable light gathering at 300mm
  • ✓Full-frame lens format ensures coverage across full-frame DSLR sensors

Cons — Olympus TCON-300

  • ✗No autofocus — manual focus only may be limiting for fast-moving subjects
  • ✗No image stabilization, increasing challenge of sharp handheld shooting at 300mm
  • ✗Substantial weight of 1,800g requires sturdy support for comfortable use

Videos — Olympus TCON-300

Olympus MC-20 2X Teleconverter Lens Review — Robin Wong

Resources & Downloads — Olympus TCON-300

Manuals & Guides

Frequently Asked Questions — Olympus TCON-300

What camera mount does the Olympus TCON-300 use?+
The TCON-300 is fitted with an Olympus OM mount. It is compatible with cameras that accept the Olympus OM lens mount, and can also be used on other camera systems with an appropriate OM-mount adapter.
Does this lens support autofocus?+
No. The TCON-300 is a manual focus lens only. There is no autofocus mechanism, so focusing must be performed manually by the photographer.
Does the TCON-300 have image stabilization?+
No, the specifications confirm that image stabilization is listed as None. Photographers should plan to use a tripod or other support, especially at the 300mm focal length, to minimize camera shake.
What is the maximum aperture of this lens?+
The maximum aperture is f/4.5. This is the widest the lens can open, which should be considered when planning use in lower-light conditions.
How heavy is the Olympus TCON-300?+
The lens weighs 1,800 grams. This is a considerable weight and photographers should factor this into their choice of tripod, monopod, or carrying solution.
Is this a zoom or prime lens?+
The TCON-300 is a prime lens with a fixed focal length of 300mm. There is no zoom capability, so the field of view is fixed.

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