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Black metal lens mount adapter connecting Contax 645 lenses to Fujifilm X cameras

Fotodiox

Fotodiox Pro Contax 645 to Fujifilm X Adapter

SKU CH-DTR0-TSCNJ

A manual adapter connecting Contax 645 lenses to Fujifilm X-mount mirrorless cameras with guaranteed infinity focus

  • Infinity focus guaranteed for sharp images at all distances
  • Manual aperture control retained for full exposure authority
  • Sturdy construction ensures lasting durability in daily use
  • Connects Contax 645 lenses to Fujifilm X-mount cameras
  • No electronic communication — autofocus and metering disabled

Contax 645 lens to Fujifilm X mount

The adapter connects Contax 645 medium-format lenses to Fujifilm X-series mirrorless bodies. It is a purely mechanical coupling with no electronic contacts, so autofocus, auto-exposure metering and image stabilisation are not transmitted. Photographers who want to use legacy glass on a modern mirrorless system will find it suitable, while shooters who rely on electronic lens communication will not.

Infinity focus with manual aperture control

The mount surfaces are machined for a smooth, repeatable fit that guarantees infinity focus across the focal range. Because the adapter carries no electronics, exposure must be set manually or through the camera's aperture-priority stop-down mode. Lenses lacking a manual aperture ring will remain stopped down to their smallest f-stop, which can limit creative control in bright conditions.

Two-part construction for X-mount cameras

The package combines a Contax 645-to-Canon EF adapter with a Canon EF-to-Fujifilm X adapter, joining them into a single light-tight tunnel. Alignment marks on both sections help prevent cross-threading during assembly. The only common issue is forgetting to set the lens aperture ring before shooting, which leaves the iris at its minimum opening and produces unexpectedly dark images.

Highlights

  • Infinity focus guaranteed for sharp images at all distances
  • Manual aperture control retained for full exposure authority
  • Sturdy construction ensures lasting durability in daily use
  • Connects Contax 645 lenses to Fujifilm X-mount cameras
  • No electronic communication — autofocus and metering disabled

Specifications

No published specifications for this item yet.

Questions about this item

Does the Contax 645 adapter add any electronic noise or heat during long shoots?

It is a purely mechanical adapter with no electronics, so it generates no heat, noise or power draw.

What must I already own for this adapter to work?

You need a Contax 645 lens and a Fujifilm X-mount camera body such as the X-Pro1, X-E1, X-M1, X-A1, X-E2 or X-T1.

Will my older Contax 645 lenses focus to infinity on a Fujifilm X body?

Yes, the adapter guarantees infinity focus with manual aperture control, though autofocus and electronic metering are not supported.

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