Erp1938

I just bought a Nikon 18-300mm VR lens, can a Teleconverter be used on it?

CHG_CANON Loc: the Windy City

A Nikon, definitely no. Maybe a third-party can be physically connected, but the results wouldn't be worth the effort / expense. DX lenses are not intended for teleconverters. Leverage the cropped sensor factor and high pixels instead.

joer Loc: Colorado/Illinois

Nikon publishes a list on lens compatibility.

Even if it did fit it's not advisible.

Quixdraw Loc: x

Thomas902 Loc: Washington DC

Thank you quixdraw... That synopsis it excellent! Nice to have this all in one .PDF (downloaded and saved)

To the OP (Erp1938) you already are at an effective field of view equivalent to 450mm (not Focal Length)
Like Paul said: "...Leverage the cropped sensor factor and high pixels instead..."
If that isn't enough... Follow Robert Capa's wisdom "Get closer!"

Otherwise you bought the wrong lens... Even third party TC's don't work well under 100mm and certain not 18mm
Return the 18-300mm f/3.5-5.6 for an AF-S 200-500mm f/5.6E ED VR which can use the Nikon TC-14E,-II,-III

Hope this helps...

Quixdraw Loc: x

BTW, Have and use the AF S 200-500 1:5.6 with the TC14 II an excellent and useful combination!

Erp1938

That will be my next Lens in the future.Thanks!

Erp1938

Thanks for the info.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

I do not see that lens on the following chart so I am going to say no.
https://cdn-5.nikon-cdn.com/Assets/Common-Assets/Images/Teleconverter-Compatibility/en_US_Comp_chart.html
And even if you can get a third party, using it may damage the rear element and even if it does not you will not have auto focus, you will have manual focus only.
Personally I would not even attempt to use a third party adapter, your shots will suffer in sharpness and you will probably ruin the rear element of your lens.
So NO.

imagemeister Loc: mid east Florida

For all practical purposes, NO. Crop and use pixel enlargement software if needed for larger printmaking.
.

amfoto1 Loc: San Jose, Calif. USA

It might be possible to fit a third party teleconverters, such as a Kenko.

However, you're unlikely to be very happy with the results.

First, I assume you are using that lens on a DSLR... In which case autofocus will struggle at best and fail completely at worst. The reason is that a teleconverter reduces some of the light passing through to the AF sensors in the camera. A 1.4X teleconverter "costs" one stop of light, while a 2X teleconverter costs two stops. Where your lens is an f/3.5 to f/6.3 on its own, if you add a 1.4X it becomes an effective f/5 to f/9. Or, if you add a 2X it will bcome an effective f/7.1 to f/14. At the shorter focal lengths and with the weaker 1.4X TC, the camera might still be able to autofocus, but is more likely to do so slowly and to hunt and struggle to focus at times. But if you are adding a teleconverter it's usually the longer focal lengths that matter... After all, you usually only use a TC when you want a more powerful telephoto. So it's the f/9 (1.4X) and f/14 (2X) that really matter. Your camera might be able to AF slowly and erratically at f/9, but is almost certain to fail completely to focus at f/14.

Next is image quality. There's always some image quality (IQ) lost to any teleconverter. There is more loss of IQ with a stronger 2X than there is with a weaker 1.4X. Exactly how much IQ is lost varies widely, depending upon the lens the TC is used upon. Essentially, the TC "magnifies" any shortcomings of the lens. The best lenses to use with a TC, where the hit to IQ is the least, are extremely high quality primes such as 400mm f/2.8 and 600mm f/4 that cost upwards of $10,000. The worst lenses to use them upon are zooms... particularly wide ranging, consumer quality zooms.... and especially ultra-wide ranging zooms such as an 18-300mm! (That's a 16X zoom, which means an ultra-wide range!)

There are exceptions. Some zooms work pretty darned well with high quality teleconverters. I use a Canon 1.4X II TC with a Canon EF 100-400mm II lens and get very good results. But that's a pretty high quality zoom with excellent optics (including a fluorite element, like Nikon has started using in their "FL" lenses too). Even so, using a TC on that lens limits how much background blur is possible. It's an f/5.6 lens, so becomes an f/8 lens once a 1.4X is added (also becomes effective 560mm).

Quality also varies among the TCs themselves. Nikon {and Canon) make excellent TCs, but they all have a protruding front element that limits the lenses they can be used upon. That front element has to fit inside the rear barrel of the lens and the lens also cannot be a "rear focus/zoom" type where the rear element will come in contact with the TC. As a result, you cannot use any Nikon TC on your lens. There are considerably cheaper 3rd party TCs that will fit and won't interfere with the lens' function... but the image quality is nowhere near as good. I took a quick look and it appears the Tamron and Sigma teleconverters for Nikon F-mount now have protruding front elements, same as the Nikon TCs. So that leaves the Kenko as one of the few remaining options. I honestly don't know how well the latest "HD" generation of those work or how good IQ they would give with a Nikkor 18-300mm... but I wouldn't have very high expectations. The 1.4X might be acceptable, but only gets you to effective 420mm f/9 at best. Remember, the 2X will not allow your camera and lens to autofocus.... and manual focus will be difficult with a dark viewfinder. So I'd rule it out on that basis.

The Kenko 1.4X probably will allow AF, but you would probably be better served putting aside the $235 it costs and continuing to save more $ until you can afford a lens with longer focal length, such as a Tamron 100-400mm ($800 plus $129 for the optional tripod mount) or Sigma 150-600mm "Contemporary" ($900) or Nikkor 200-500mm ($1400). Those are some of the most affordable zooms longer than 300mm and the prices noted are current for a new lens. You might be able to find for less buying used or refurbished. All these lenses are bigger and heavier than your 18-300mm... but will undoubtedly be able to autofocus and give you much better image quality than any TC on your current lens.

dreklaw Loc: Tucson

I have a similar inquiry and can’t seem to find info. I have a Sigma 150-600C lens with my Canon 70D crop camera and am thinking of getting a 1.4x teleconverter, and need to know how to tell which one, if any, would work, please. Any thoughts? Thanks so much, in advance.

CHG_CANON Loc: the Windy City

This is the wrong place to ask an unrelated question. Rather, you should open a new post specific to your equipment profile. That said, your EOS 70D is limited to a lens with a maximum aperture of f/5.6 or wider. The Sigma 150-600C is f/6.3 on the long end, but I believe it 'reports' f/5.6 to the camera to work around this limitation. You have no option to make that effective maximum aperture smaller and retain autofocus with an extender, whether 1.4x or 2x.

imagemeister Loc: mid east Florida

Crop and use pixel enlargement if necessary .....OR, get closer
.

Doc Mck Loc: Terrell,Texas

The Sigma converter works fine on my 150-600 Sigma lens. I have the 1.4 converter. I’ve used it on my 7D mkii. Haven’t tried it on my 90D