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Black metal M42 to EF adapter ring 65 x 9 mm with AF confirm chip

Ruth's sister

Ruth's sister M42 to EOS EF adapter AF Confirm chip black 65 x 9 mm

SKU CH-TAEC-YND3Y

Allows M42 lenses to mount on Canon EOS EF bodies with an AF-confirm chip that activates the focus indicator

  • Use M42 lenses on Canon EOS EF bodies
  • Third-generation AF-Confirm chip enables focus confirmation
  • Fixed EXIF records 50 mm f/2.0 aperture data
  • Copper-aluminium-magnesium alloy construction measures 65 x 9 mm
  • Supports aperture-priority and manual exposure modes

M42 to EOS EF adapter with AF confirm

This adapter lets photographers attach M42 screw-mount lenses to Canon EOS EF camera bodies. A third-generation AF-confirm chip activates the viewfinder focus light and beep when the subject is in focus. EXIF data is recorded at a fixed 50mm f2.0 setting. The copper-aluminium-magnesium alloy construction measures 65 x 9 mm and finishes in black.

Manual focus workflow with electronic assist

The adapter supports Aperture Priority and Manual exposure modes while leaving infinity focus to manual adjustment. Focus confirmation works reliably for stationary subjects, but the chip cannot drive lens aperture or autofocus motors. Exposure metadata is written to EXIF, yet the fixed focal-length value limits its usefulness for precise record-keeping.

Single adapter ring in the box

One MD-NEX adapter ring is supplied, compatible with listed EOS bodies including 5D, 1000D and 300D models. No macros rings, tools or firmware updates are included. The opening-pin flange design permits macro extension tubes, but auto iris and autofocus functions remain unavailable because the lens lacks electronic aperture control.

Highlights

  • Use M42 lenses on Canon EOS EF bodies
  • Third-generation AF-Confirm chip enables focus confirmation
  • Fixed EXIF records 50 mm f/2.0 aperture data
  • Copper-aluminium-magnesium alloy construction measures 65 x 9 mm
  • Supports aperture-priority and manual exposure modes

Specifications

No published specifications for this item yet.

Questions about this item

Will the 65 x 9 mm adapter let me keep using my M42 lenses on a Canon EOS 5D body?

Yes, the adapter fits M42 mount lenses to Canon EOS EF bodies including the 5D, 1000D, 450D and other listed models.

How do I know the AF-Confirm chip is active after mounting the lens?

The viewfinder focus-confirmation light and beep will trigger when the lens is manually focused accurately.

Does the package include any macro rings or extra mounts, or just the single adapter?

Only one adapter ring is supplied; macro rings and other accessories must be purchased separately.

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