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Nikon TC-17E II 1.7x teleconverter, compact black cylindrical lens accessory

Nikon Inc

Nikon Inc TC-17E II 1.7X Teleconverter camera lens

SKU CH-V10D-PZK2J

Extends focal length by 1.7x for AF-S and AF-I lenses while maintaining high focus and VR compatibility

  • TypeOthers
  • Extends focal length 1.7× with compatible AF-S and AF-I lenses
  • Maintains high autofocus accuracy through the converter
  • Preserves lens speed with minimal light loss
  • Supports updated VR function on professional lenses
  • Designed specifically for Nikon AF-S and AF-I lens systems

Focal-length extension

The Nikon TC-17E II is a 1.7X teleconverter designed for photographers who need extra reach from their existing AF-S and AF-I lenses. It multiplies the lens focal length by 1.7 while preserving high focus performance. This accessory suits wildlife, sports or event shooters who want a tighter field of view without carrying a longer prime lens. It is not for users whose lenses lack AF-S or AF-I compatibility.

Optical construction and mount

The converter fits between a compatible Nikon lens and the camera body using the standard Nikon F mount, adding minimal bulk to the optical path. Its design maintains the lens's VR function where supported, so image stabilisation remains active during handheld shooting. The unit has no moving parts of its own, relying entirely on the host lens for focus and aperture control. Photographers who require electronic contacts for non-AF-S glass cannot use this converter.

Compatibility and operation

The package contains only the teleconverter itself, so no extra pouches, caps or software are supplied. Operation is purely optical and mechanical; attaching it instantly changes the effective focal length and reduces the maximum aperture by approximately 1.5 stops. Users must verify that their specific AF-S or AF-I lens model is on Nikon's supported list, as some older or variable-aperture designs are excluded. There are no firmware updates or configuration tools to install.

Highlights

  • Extends focal length 1.7× with compatible AF-S and AF-I lenses
  • Maintains high autofocus accuracy through the converter
  • Preserves lens speed with minimal light loss
  • Supports updated VR function on professional lenses
  • Designed specifically for Nikon AF-S and AF-I lens systems

Specifications

BrandNikon
TypeOthers

Questions about this item

Which AF-I and AF-S lenses can I use with the 1.7x teleconverter?

The TC-17E II is designed for Nikon AF-I and AF-S lenses. Compatibility depends on the specific lens model, so check your lens documentation to confirm it supports 1.7x conversion.

What camera mount does the TC-17E II use to attach between the body and lens?

It uses the Nikon F mount on both the camera side and the lens side, letting it sit directly between compatible AF-I or AF-S lenses and F-mount bodies.

Do I need to update firmware or change any settings when fitting the 1.7x converter?

No firmware update is required. Mount the converter on the camera first, then attach the lens. Ensure the lens aperture ring is locked at its minimum setting if it has one.

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