The Nikon TC-14E is an expensive (about $400 in 2008) 1.4x teleconverter which only works with Nikon's more exotic AF-S and AF-I telephoto lenses. You lose one stop of light and gain 40% more focal length.
Its front elements poke out, so they are shrouded in rubber. After about ten years, this rubber develops a little bit of a gray haze on it, which wipes right off.
Nikon makes NO AF teleconverters for its general line of AF lenses. One must instead use a manual focus converter like the TC-200 and focus manually, or screw with discount brands and hope the matrix metering couples correctly. See Teleconverters for more.
Nikon has also made manual-focus 1.4x teleconverters, the TC-14, TC-14A, TC-14B and TC-14C. I'm ignoring these here.
Nikon's first AF 1.4x teleconverter was called the TC-14E, which is pictured at the top. It was marked "AF-I" for the only kind of lenses with which it worked when it was introduced. As Nikon introduced AF-S lenses, these converters worked perfectly, but innocent people were confused as to why it said AF-I instead of AF-S.
Nikon TC-14E II (2001-today)
Nikon changed the cosmetics slightly, changed the lettering to read "AF-S" and renamed it the TC-14E-II.
Nikon made about 20,000 of the original TC-14E, and as of 2008, has made about 15,000 of the newer TC-14E II.
I use the names TC-14E and TC-14E II throughout the text interchangeably. They are the same product.
5 elements in 5 groups, multicoated.
2.586" diameter by 0.970" flange-to-flange (65.69 x 24.65mm), measured (TC-14E).
Nikon specifies 2.6" (65mm) around by 1" (25mm) long.
TC-14E: 7.085 oz. (200.8g), measured, no caps.
7.677 oz. (217.7g) with caps.
Nikon specifies 7 oz (200 g) for the TC-14E and TC-14E II.
Since the front pokes out, the front cap is different from a standard Nikon body cap. The TC-14E takes a BF-3A front cap. It also takes the BF-3 as shown below; the BF-3A (albino) is a light gray cap to differentiate it from a conventional body cap. The rear cap is the usual one.
CL-30S (not included).
Nikon Product Number
2129 (TC-14E II).
Laser engraved on bottom rear of barrel.
Front, Nikon TC-14E. enlarge.
Rear, Nikon TC-14E. enlarge.
If you have an f/2.8 or f/4 AF-S or AF-I lens this is a handy addition. 40% more reach isn't much.
I bought a TC-14E and returned it. It didn't lose performance, but it didn't make things long enough to justify the expense.
In the 1980s I did carry a TC-14A everywhere, because it made my 180mm f/2.8 ED into a 250mm f/4, which was handy.
It is useless unless you have a long AF-I or AF-S lens. One CANNOT mount any other AF or manual lens or accessory to the front because it is keyed mechanically to prevent this.
This converter is intended for professional use with long super telephotos. It is not like the old TC-201 or TC-14A teleconverters that were intended for general use to make a normal lens into a telephoto. Likewise, the results are great with 300mm and longer fixed AF-I and AF-S lenses and so-so with the 80-200 AF-S zoom.
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