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Nikon AF-S Teleconverter TC-14E II 1.4X for Select AF-I, AF-S Lenses

Model #217334
  • $172.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
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Nikon's 1.4x F-mount teleconverter that keeps autofocus intact.

The TC-14E II extends the reach of compatible AF-I and AF-S Nikon lenses by a factor of 1.4x with only a 1-stop light penalty. That's a meaningful trade-off: a 300mm f/2.8 becomes a 420mm f/4, and you keep full autofocus operation throughout. Internal focusing geometry on the host lens is preserved, so minimum focus distances and handling stay consistent with what you'd expect from the bare glass.

Nikon engineered this converter specifically for AF-I and AF-S lenses, meaning the optical and electrical contacts are matched to that ecosystem. You're not rigging an adapter or crossing your fingers on AF speed, the converter was built into that workflow from the start. For shooters who already own a fast Nikon telephoto prime, the TC-14E II is a cost-efficient path to reach that wouldn't otherwise exist without buying a second, longer lens.

Who It's For

Wildlife photographers working AF-S super-telephotos get a genuine reach extension without losing the autofocus speed they depend on for moving subjects. Sports shooters pairing this with something like a 400mm f/2.8 gain a 560mm option at f/4, still usable in reasonable light. Bird photographers who work at the edge of their current focal length will find the 1.4x factor meaningful without the bulk of a longer prime. Travel photographers carrying a fast 70-200mm AF-S can stretch it to 280mm with only a 1-stop cost and no change to their focus system.

Key Features

  • 1.4x magnification extends compatible AF-S and AF-I lenses
  • Maintains full autofocus operation with no AF speed loss
  • One-stop light reduction in effective aperture
  • Preserves internal focus geometry and minimum focus distance
  • Nikon F-mount with precision optical and electrical contacts
  • Compatible with select Nikon AF-I and AF-S telephoto primes

FAQ

Does autofocus still work with the TC-14E II?
Yes. Nikon engineered this converter for AF-I and AF-S lenses specifically, so autofocus operates at full speed with no hunting or lag. You're not sacrificing AF performance for extra reach.
How much light do I lose with this teleconverter?
One stop. A 300mm f/2.8 lens becomes 420mm f/4 in terms of effective aperture. That's the trade-off Nikon built into this design.
Will my minimum focus distance change?
No. Internal focusing geometry on the host lens is preserved, so MFD and handling stay identical to using the lens alone.
Which Nikon lenses work with the TC-14E II?
Select AF-I and AF-S primes. Nikon designed the optical and electrical contacts specifically for that ecosystem, so compatibility is limited to those lens families.
Is this better than buying a longer lens outright?
If you already own a fast Nikon telephoto prime, the TC-14E II is cheaper than buying a second, longer lens and gives you a backup option on the same glass.
Can I stack this with other converters?
Nikon does not recommend stacking converters. Use the TC-14E II alone on a compatible AF-S or AF-I lens.
SpecificationValue
MountNikon F
Magnification1.4x
Compatible LensesSelect Nikon AF-I and AF-S lenses

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Nikon
Focus Type Autofocus (lens motor)
Lens Mount Nikon F Mount AF (pre-D), Nikon F Mount D Type, Nikon F Mount G Type