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Koni-Omega Omegon 58mm f/5.6 Wide-Angle Lens

The Koni-Omega Omegon 58mm f/5.6 is a lens from Koni-Omega. Check GearFocus for current availability, with buyer protection on every purchase.

Koni-Omega Omegon 58mm f/5.6 Wide-Angle Lens

Koni-Omega Omegon 58mm f/5.6 Wide-Angle Lens

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Lens Overview — Koni-Omega Omegon 58mm f/5.6

The Koni-Omega Omegon 58mm f/5.6 Wide-Angle Lens is a medium format wide-angle lens manufactured by Konica, designed for use with the Koni-Omega system. With a focal length of 58mm and a maximum aperture of f/5.6, this lens falls into the wide-angle category, making it well-suited for landscape, architectural, and environmental photography on medium format. The optical design is based on the Biogon layout — a configuration noted for its even field coverage and minimal distortion characteristics — and the lens carries a reputation described in user discussions as extremely sharp.

A dedicated viewfinder is available as part of the 58mm unit, which is a practical inclusion for a rangefinder-style medium format system where through-the-lens viewing is not always standard. The lens is manufactured by Konica, distinguishing it from the related Koni-Omega 60mm lens, which was produced by Mamiya. For photographers already invested in the Koni-Omega ecosystem or looking to explore medium format wide-angle shooting with a Biogon-derived design, the Omegon 58mm f/5.6 represents a distinctive and reportedly capable optic.

Key Features — Koni-Omega Omegon 58mm f/5.6

58mm Medium Format Wide-Angle: A 58mm focal length on medium format delivers a genuinely wide perspective well-suited to landscapes, architecture, and environmental subjects.

Biogon-Derived Optical Design: The optical layout is based on the Biogon design, a configuration known for even field illumination and low distortion across the frame.

Konica Manufacture: Built by Konica rather than Mamiya, distinguishing it from the related 60mm lens and reflecting Konica's own optical engineering heritage.

f/5.6 Maximum Aperture: A maximum aperture of f/5.6 is typical for wide-angle medium format lenses of this era and keeps the optical design compact.

Dedicated Viewfinder Included: A matching optical viewfinder is bundled with the 58mm unit, enabling accurate framing on Koni-Omega rangefinder-style bodies where TTL viewing is not available.

Koni-Omega System Compatible: Designed specifically for the Koni-Omega medium format system, making it a direct fit for photographers already using this platform.

Description — Koni-Omega Omegon 58mm f/5.6

The Koni-Omega Omegon 58mm f/5.6 Wide-Angle Lens is a medium format optic manufactured by Konica, built around a Biogon-copy optical design. At 58mm, it provides a wide-angle perspective within the Koni-Omega camera system, and its Biogon-derived design is associated with strong field coverage across the medium format frame. Users familiar with the system have described the lens as extremely sharp, lending it credibility as a serious wide-angle option for medium format work.

A dedicated viewfinder is included with the 58mm unit, a welcome addition for compositional accuracy on rangefinder-style medium format cameras. The lens is produced by Konica, setting it apart from the Koni-Omega 60mm, which was manufactured by Mamiya. With a maximum aperture of f/5.6, the lens is best suited to well-lit shooting environments.

For collectors and working photographers engaged with the Koni-Omega system, this lens offers a distinctive wide-angle option with a respected optical lineage.

Pros — Koni-Omega Omegon 58mm f/5.6

  • ✓Biogon-copy optical design known for wide-angle field coverage and sharpness
  • ✓Described as extremely sharp by users familiar with the Koni-Omega system
  • ✓Manufactured by Konica, distinguishing it from the Mamiya-made 60mm counterpart

Cons — Koni-Omega Omegon 58mm f/5.6

  • ✗Maximum aperture of f/5.6 is relatively slow, limiting use in lower-light situations
  • ✗System-specific lens with a narrow compatibility range outside the Koni-Omega platform
  • ✗Very limited published technical specification data is available for this lens

Frequently Asked Questions — Koni-Omega Omegon 58mm f/5.6

Who manufactured the Omegon 58mm f/5.6 lens?+
The Omegon 58mm f/5.6 was manufactured by Konica. This distinguishes it from the related Koni-Omega 60mm lens, which was made by Mamiya.
What optical design does this lens use?+
The lens uses an optical design described as a Biogon copy. The Biogon layout is associated with wide-angle coverage and is noted in the context of this lens for delivering extremely sharp results.
Does a viewfinder come with this lens?+
Yes, a viewfinder is available with the 58mm unit. This is a practical accessory for Koni-Omega system cameras, which use a rangefinder-style shooting approach.
What is the maximum aperture of this lens?+
The maximum aperture is f/5.6. This is a moderate aperture for a wide-angle medium format lens and is worth considering when shooting in lower ambient light conditions.
Is this lens compatible with systems outside the Koni-Omega platform?+
The available specification data does not include compatibility information beyond its designation as a Koni-Omega system lens. Buyers should verify mount compatibility with their specific camera body before purchasing.