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Home → Cameras and Lenses

Nikon TC-14E III vs TC-14E II Performance Comparison

By Nasim Mansurov 77 Comments
Last Updated On April 25, 2020

I am currently in the process of testing the Nikkor 400mm f/2.8E FL lens in my Imatest lab and I am simultaneously also measuring the performance of the new Nikon TC-14E III teleconverter and comparing it to the older TC-14E II. Although I am planning to review the teleconverter separately, I decided to give our readers a glimpse of the teleconverter performance when compared to its predecessor in terms of sharpness. To make it easy to compare differences, I converted all numbers to percentages (detailed numbers will be posted in the reviews).

I am posting information based on what lenses I have tested the teleconverter with. Since teleconverter performance varies a bit depending on the lens, I suggest you look into the benefits of using the TC-14E III over the TC-14E II depending on what lenses you are planning to use. Please note that all tests for the below lenses were tested at the longest available focal lengths. Although I have previously reported that using a 1.4x teleconverter results in approximately 5-7% drop in sharpness, that particular test was performed at medium distance using a 70-200mm f/2.8 lens. In subsequent tests, I found out that TC performance can actually vary quite a bit depending on lens, focal length and camera to subject distance. In the below example, the sharpness penalty of the 1.4x teleconverter is probably at its “worst case scenario”. Don’t pay much attention to the differences between the blue line and other lines – look at the green and red lines, which outline performance differences between the two teleconverters:

That’s pretty interesting data – let’s do a quick analysis.

Table of Contents

  • Nikkor 400mm f/2.8E FL
  • Nikkor 70-200mm f/2.8G VR II
  • Nikkor 300mm f/4D AF-S
  • Nikkor 200-400mm f/4G VR
  • Conclusion

Nikkor 400mm f/2.8E FL

It seems like the new TC-14E III does really well on new lenses. Based on my data, performance differences varied between 3-4%, which might be worth looking into for those that want ultimate sharpness with their “E” series lenses. Based on how well it worked on the 400mm f/2.8E FL, I would assume we would see similar performance improvements on the 800mm f/5.6E FL and any future Nikkor super telephoto lenses.

Nikkor 70-200mm f/2.8G VR II

The performance in sharpness between the new TC-14E III and TC-14E II is practically non-existent. Looking at Imatest numbers, the difference stays very close at 1% mark, which is within the margin of error. Not worth moving up to in my opinion.

Nikkor 300mm f/4D AF-S

Now this one is interesting, because technically the TC-14E III does not work on the 300mm f/4D AF-S. When you mount the TC, the camera shows two “EE”s, indicating an error. If you look at this teleconverter compatibility chart, it clearly states that the 300mm f/4D is “not compatible”. To get the TC to work, I set aperture on the lens to f/4 and changed camera options to set aperture on the lens. The camera was locked at f/5.6 for aperture, so I had to move to manual mode to properly set exposure (aperture priority also works). As you can see from the result, it is less than 2% performance difference, so not much of an improvement here either, even if Nikon made the TC-14E III work with the 300mm f/4D.

Nikkor 200-400mm f/4G VR

Same result here – it seems like the TC-14E III does not do better compared to its predecessor on this lens. With less than 1.5% difference in sharpness, it practically brings no benefit.

Conclusion

Unlike the Nikkor TC-20E III, which was significantly better than its predecessor, it seems like the new TC-14E III teleconverter is only beneficial to use on the newest Nikon lenses for the most part. Based on my tests so far, it did very well on the new 400mm f/2.8E FL lens, but its performance was rather disappointing on older “G” type lenses like 70-200mm f/2.8 and 200-400mm f/4. As I get my hands on other super telephoto lenses, I will continue testing the TC-14E III and will update this article with additional information. If you have additional data or information on how the TC-14E III performs on your lenses, I would love to hear your feedback in the comments section below!

P.S. I don’t want to give too many spoilers for the upcoming 400mm f/2.8E FL review, but the lens sharpness is absolutely stunning. And boy, that lens is so light compared to its predecessor and other Nikkor super teles…

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Disclosures, Terms and Conditions and Support Options
Filed Under: Cameras and Lenses Tagged With: Nikon, Teleconverter, Super Telephoto Lens, Imatest

About Nasim Mansurov

Nasim Mansurov is the author and founder of Photography Life, based out of Denver, Colorado. He is recognized as one of the leading educators in the photography industry, conducting workshops, producing educational videos and frequently writing content for Photography Life. You can follow him on Instagram and Facebook. Read more about Nasim here.

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Yousif A Almadani
Yousif A Almadani
April 11, 2020 1:38 am

i have nikon d5 with 500mm f4 e fl whan i am using tc 1.4 iii the camera focus very fast and fine
and when i am using the old tc 1.7 ii the camera some times not focusing or focusing very slow
i dont know the problem i tried to clean lens and tc contacts but face the same problem

i am thinking to by tc 2.0 iii

1
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Patrick Smith
Patrick Smith
December 24, 2019 1:45 pm

I updated my TC-14E II recently to the TC-14E III for use on my Nikon 400mm f2.8G VR lens. I wouldn’t say there is much of an improvement in sharpness, both are great in my opinion. However where I find there is a big difference is weather sealing and autofocus performance. The newer TC-14E III is weather sealed, constructed better and has fluorine coating which really helps keep the front and rear element clean. This is huge in my opinion as I’m a photojournalist and therefor forced to shoot in whatever weather is happening at my assignments. Also I find that the autofocus is better with the new TC-14E III, maybe not much faster, but definitely more accurate…it’s hard to describe it but I notice it’s just better. For the weather sealing, fluorine coating, better construction and design with slightly better IQ and AF this is a no brainer. Whats not a no brainer is the price lol, so I found one used on ebay from a dealer in Japan that I have used before and love, MapCamera and they had one for $364 USD! If you have a 300mm f2.8 VR/VRII, 400mm f2.8 VR/FL, 500mm f4 VR/FL or 600mm f4 VR/FL this is definitely the teleconverter to buy for the reasons above, if not for the weather sealing alone. If you’re like me and have spent $7,000-$10,000+ on a lens and $1,000 on a proper tripod setup, please just spend the $500 for this TC so that your huge investment is properly weather sealed, the other benefits are gravy!!!

1
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Carey Lee
Carey Lee
June 29, 2020 11:22 am

I’m using a D750 and I can’t get the 1.4e ii to work with the Nikon 300mm f4 D ED. It works when I put it on my D3s with the 300mm.

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Bruce Terrill
Bruce Terrill
April 13, 2018 2:21 am

Hi Nasim,
I have Nikon D500 & D7200 bodies and Nikkor 70-200 E FL VR, 200-500 F5.6E and 300mm F2.8 G ED VRII lenses, plus others.
I also have Nikon TC-14E MkII, MkIII & TC-20E MkIII.
When I use my 300mm F2.8G ED VRII lens on my D7200, I need an AFFT figure of +20 to align/mate this combination together. Please note that this combination was set by Nikon Australia because I was having trouble with terrible images and I couldn’t find a solution. When the equipment was tested by Nikon Australia, they found that the D7200 was rear focusing and they fixed that, they 300mm F2.8 was within specs, but the 1.4X MkIII was “Not even close” to being within specs. They adjusted the camera setting for the TC-14E MkIII/300mm F2.8 combination with a setting of +20 and refused to replace the offending teleconverter, saying that the “Plus twenty figure was in fact just a figure and not to pay any attention to it!” I still get varying results from the set-up and I’m not at all confident carrying it into the field. . .

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Mark bredonchel
Mark bredonchel
February 15, 2018 4:23 pm

Hi, i have a Nikon D5300, i am looking at getting a Nikon 300mm f4 pf prime lens, will this work with a TC 1.4x converter mk11 or mk111, regards Mark.

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Alex
Alex
January 19, 2018 6:40 pm

Hi,
Thank you for the tip on how setup the TC14E-III with older AF-s telephoto lenses.
It now works very well with my AF-s 500mm f/4 IF-ED first version (I had “EE” message before I use the aperture ring and changed the aperture settings in the camera’s menu).
The results TC-14E III + AF-s 500mm f/4 are outstanding, believe it or not, the image is sharper (and have more contrast) when my 500mm f/4 is use with the TC-14E III (at f/4) compared to the lens itself!
This is the first time I notice a teleconverter improving the lens original sharpness and contrast!
Thanks again!
Alex

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Ralf Ekqvist
Ralf Ekqvist
May 26, 2017 10:40 am

Hi, I have the same question Nikon 500/4VR + 1.4EIII. Any experience? I have had a big problem with Nikons teleconcerters. I travel a lot with my small motorboat and the teleconverters dont withstand the shake. The bajonet gets slappy and after some time the screws dont get it thigtend anymore. I have the 3d TE1.4 now and have had earlier copies repaired but after some while you have to buy a new one. The 500/4VR+ D4 has been a heavy combo ( muck of the reason) so I now changed to D500, mostly due to weight.

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Krishna prasad
Krishna prasad
April 24, 2017 10:34 am

I have Nikon 500mm f/4 G lens. I am currently using 1.4x TCii . I want to know is it good to upgrade to 1.4iii version?

Let me know you thoughts and comments

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James
James
January 10, 2017 7:24 am

I have done extensive “field test” with the TC 1.4ii and iii on my Nikon 300 G f2.8 vr2. It is clear that the iii is a better match with my lens, it is not only sharper but the color and crispness of the images are better, plus the focus is also faster. I tested the 2 TC trying to photograph Swallows in an open field with my D500. My success rate with TC 1.4ii as very low just because it is that fraction to slow. The results with the new TC was almost as good as the naked lens. What I also noticed is that image quality on the D810, D500 and D4s was sharper and color depth better than with the old one. But on the D4, D700, D3s and D300 there is almost no difference. For interest. I own the D4s and D500 and used the D300, D810, D4 and D3s from members of our photo club who also owned the 300 f2.8 and the 200-400f4 vr2. We found similar results on the 200-400vr2. So, the result is that I support the idea that it improves sharpness on the new lenses, I would say on most prime lenses. I would upgrade for the overall IQ improvement except if I was using older bodies.

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Reply
Kenneth Wong
Kenneth Wong
June 13, 2016 2:05 pm

Hi Nasim,

I want to thank you for publishing your teleconverter tests. To my knowledge, you are the only person who has published hard data on this subject. I’ve referenced your articles on a few different occasions on other forums in which I participate. There are a lot of people who incorrectly believe that the 1.4x TCs noticeably degrade image quality, and your articles have been valuable in making “believers” out of them.

On that note, I recently noticed that on my sample of the 200-400mm, my TC-14e II has been producing a bit of a “glow” or spherical aberration when I shoot wide open in certain situations. I’ve not experienced this with any of my other lenses, including the 70-200mm f/2.8G VR II or 300mm f/2.8 AF-S II.

I’ve been using this combination primarily on a D7200 and do not recall experiencing this with my FX bodies, so I will need to perform additional testing to determine whether there is a problem with my lens, the TC, the combination of the two and if this is limited to the D7200. In all honesty, I can’t remember using this combination on my FX bodies for anything other than random tests around my neighborhood.

Thanks again.

Ken

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