The issue of which Kenko TC 1.4 works with which body and lens comes up from time to time. Rather than folks having to hunt for the info, I'm gathering it here in this post which we will Pin.

 

Feel free to add info as you learn more combinations! If anyone has a Z8 and can test out a Kenko, that would be a useful addition.

 

Nikon D500 (DX)

D500 + Kenko TELEPLUS PRO300 DG + Tokina 10-17: AF works; no vignetting at any focal length

D500 + Kenko TELEPLUS PRO300 DGX + Tokina 10-17: AF works; no vignetting at any focal length

 

D500 + Kenko TELEPLUS PRO300 DG + Nikkor 8-15: Err message. No AF; no vignetting at any focal length

D500 + Kenko TELEPLUS PRO300 DGX + Nikkor 8-15: AF works and aperture display; no vignetting at any focal length

 

Nikon D850

D850 + Kenko TELEPLUS PRO300 DG + Nikkor 8-15: ??????

D850 + Kenko TELEPLUS PRO300 DGX + Nikkor 8-15: AF works and aperture display

 

Nikon Z6 (and, presumably Z7) with firmware 3.0

Z6 + FTZ + Kenko TELEPLUS PRO300 300 DG + Tokina 10-17 : No AF; No aperture display; vignettes with hood attached after 11

Z6 + FTZ + Kenko TELEPLUS PRO300 300 DGX + Tokina 10-17 : No AF; No aperture display; vignettes with hood attached after 11

 

Z6 + FTZ + Kenko TELEPLUS PRO300 300 DG + Nikkor 8-15: AF works; vignettes with hood attached after 11

Z6 + FTZ + Kenko TELEPLUS PRO300 300 DGX + Nikkor 8-15: No AF; No aperture display; vignettes with hood attached after 11

Z6 + FTZ + Kenko HD Pro + Nikkor 8-15mm  No AF; No aperture display 

 

Nikon Z6III 

Z6III + FTZ + Kenko TELEPLUS PRO 300 DGX + Nikkor 8-15mm: No AF; No aperture display

Z6III + FTZ + Kenko TELEPLUS PRO 300 DG + Nikkor 8-15mm  AF works and aperture display

Z6III + FTZ + Kenko HD Pro + Nikkor 8-15mm  [Likely does not work]

 

Nikon Z8

Z8 + FTZ + Kenko TELEPLUS PRO 300 DG + Nikkor 8-15mm  AF works and aperture display

Z8 + FTZ + Kenko TELEPLUS PRO 300 DGX + Nikkor 8-15mm  ??????

Z8 + FTZ + Kenko HD Pro + Nikkor 8-15mm  No AF; No aperture display 

 

Nikon Z9

Z9 + FTZ + Kenko TELEPLUS PRO 300 DGX + Nikkor 8-15mm: No AF; No aperture display

Z9 + FTZ + Kenko TELEPLUS PRO 300 DG + Nikkor 8-15mm  AF works and aperture display

Z9 + FTZ + Kenko HD Pro + Nikkor 8-15mm  [Likely does not work]

 

Conclusion

a. If you want to use the Kenko with a Tokina 10-17 on a D500 no problem with the DG or DGX model

b. If you want to use the Kenko with a Nikkor 8-15 on a D500, you need the DGX model

c. If you want to use the Kenko with a Nikkor 8-15 on a Z6/Z7/Z6III/Z9 you need the DG model

d. Forget trying to use either the Kenko DG or DGX with a Tokina 10-17 on the Z6/Z7 (well why would you anyway)

e. HDPro Model does not work with Z6/Z8. Not tested with Z6III or Z9 but likely does not work

 

 

 

 

 

 

Z9 info now added. Essentially same as Z6/6III/7, use the DG model not the DGX.

 

Switching over to full frame mirrorless, the one thing that becomes apparent is that neither Canon, Nikon nor Sony have yet to produce a dedicated fisheye lens for their line. And, unless you are fine with manual functioning lenses, third party manufactures have nothing really to cheer about. 

 

If you’re a Nikon shooter using any the Z model bodies, you might think your only option is Nikon’s F mount AF-S Fisheye NIKKOR 8-15mm f/3.5-4.5E ED lens with the Nikon FTZ II F to Z lens adapter. In case you are not aware, Nikon’s AF 16mm Fisheye relies on the screw mount auto focus to drive to drive the lens, which renders it as a manual focus lens with the FTZ II F to Z lens adapter, or anybody’s F to Z adapter for that matter.

 

This brings me to the Canon option. Canon, like Nikon has EF f/4 8-15mm fisheye lens with an equally beautiful set of options. And just like Nikon, their lens was originally made for their EOS line DSLR bodies with the EF mount. The reason I am addressing this lens is that they appear to be more readily available on both the new and preowned market than Nikon’s 8-15. Should the price tag be too rich for you, I suggest looking into a secondhand Canon EF f/2.8 15mm fisheye, which unlike Nikon’s 16mm fisheye, the auto focus motor is built into the lens. Whether you go Canon 8-15 f/4 or the 15 f/2.8 15mm fisheye, there is several Canon EF Lens to Nikon Z-Mount adapter with auto focus support to choose from. The two most promising is the Fringer EF-NZ II adapter followed by the Megadap EFTZ21.

 

Having a Canon EF f/2.8 15mm fisheye on hand, both appeared to allow the lens to work as close as you can get natively with full auto focus and aperture support on my Z8. To make thinks a little more interesting, both the lens and adapter combos appear to work just as well when I included a Kenko TELEPLUS HD pro 1.4x DGX Teleconverter for Canon EF with a slightly better nod going to the Fringer model. 

 

How this Canon EF f/2.8 15mm fisheye / Kenko TELEPLUS HD pro 1.4x DGX Teleconverter / Fringer EF-NZ II adapter performs optically behind a dome port underwater is something I look forward to doing in the very near future.

 

I'm sure I read somewhere recently that an independent manufacturer has produced an FTZ-equivalent that will drive older lenses. I thought when I read it that perhaps it would drive the Sigma 15mm - or as Walt mentions, the Nikkor 16mm.

 

The lack of Z-mount fisheye is, for we underwater folk, a major missing element. 

Yes, Monster Adapter now has the LA-FE2 - Nikon F-mount lenses to Sony E-mount cameras adapter with AF motor built-in for Sony users, and they do have a Nikon F to Z mount coming. The one thing I see as a potential problem is where the motor to drive these older lenses as at the bottom that could prevent it being used in some underwater housings.

 

Thanks for collating all the info together in one place Tim. How about the D850 and Nikon 8-15mm? I assume it’d be the same as the D500 and Nikon 8-15mm i.e. needs to DGX version

 

1 hour ago, LeafySeaDragon said:

Thanks for collating all the info together in one place Tim. How about the D850 and Nikon 8-15mm? I assume it’d be the same as the D500 and Nikon 8-15mm i.e. needs to DGX version

 

Yeah, you may well be right and that does seem logical. It’d be good to test it though.
 

If anyone has a D850 and a Kenko 1.4 DGX and/or DG perhaps they can report back…..

Hi,

use D850 with Nikkor 8-15mm & Kenko 1.4 DGX. Combination works flawless without any problems. If interested can path you some example photos taken with this setup.

Might be time to check if the Kenko is also working on my Nikonos 13mm 😁😁😁, never tried.. 😂😇

 

Br Markus

Thanks Markus! Good to know. I'll add it to the list

Hi Tim,  spoke to Don Silcock who is using one on a Z8 camera with the Nkon 8-15 and his is a "1.4 Teleplus Pro 300" model.

1 hour ago, Chris Ross said:

Hi Tim,  spoke to Don Silcock who is using one on a Z8 camera with the Nkon 8-15 and his is a "1.4 Teleplus Pro 300" model.

Thanks Chris. Do you know if it’s the DG or DGX model? I think the Pro 300 has one or other of those designations. 

1 hour ago, TimG said:

Thanks Chris. Do you know if it’s the DG or DGX model? I think the Pro 300 has one or other of those designations. 

I have one of those PRO 300 that it says also DGX.

38 minutes ago, canislupus said:

I have one of those PRO 300 that it says also DGX.

With a Z8?

50 minutes ago, TimG said:

With a Z8?

Sorry for the misunderstanding, I thought the doubts were related only to the Kenko teleconverter.

I have one Kenko labeled as PRO 300 but also with the DGX. I don’t have any Nikon Z to test with.

5 minutes ago, canislupus said:

Sorry for the misunderstanding, I thought the doubts were related only to the Kenko teleconverter.

I have one Kenko labeled as PRO 300 but also with the DGX. I don’t have any Nikon Z to test with.

No worries. Yeah, there is more than one version of the PRO300 and not all of them work with every Nikon body. 

On 4/7/2025 at 6:11 PM, TimG said:

Thanks Chris. Do you know if it’s the DG or DGX model? I think the Pro 300 has one or other of those designations. 

Hi Tim, I've confirmed the full description is:

 

1.4x TELEPLUS PRO 300 N-AFd DG

 

I'm also informed it was previously used on a D500 with a 10-17.  Now being used on a Z8 with an 8-15.

On 4/5/2025 at 10:59 PM, Muellema said:

Hi,

use D850 with Nikkor 8-15mm & Kenko 1.4 DGX. Combination works flawless without any problems. If interested can path you some example photos taken with this setup.

Might be time to check if the Kenko is also working on my Nikonos 13mm 😁😁😁, never tried.. 😂😇

 

Br Markus

Markus -

Super curious on:
1) HOW you would get a Kenko to work with the Nikonos 13 as the lens seals to the housing.
2) WHY would you put a teleconverter on the Nikonos 13? What view/ advantages/ etc?

I just tried the DGX (that works fine on my D500) on my Z8 with 8-15 Nikkor. No autofocus and I forgot to check aperture. Everything is put away and I have an appointment, so will check later.

Thanks John. Very likely if there’s no AF the aperture doesn’t work either. That seems the pattern.

Hi DocTock,

Just a joke... look at the smilies.

1. But.... I have converted 13mm lens. So if use a 20mm extension ring I`m able to install the teleconverter on my 13mm as the dome is separated from the lens itself.

2. No idea if it works and what the result is. This was just a thought try something out and see what`s the result. 😁😁😛😛. Im not the theorist of optical engineering but sometimes you get interesting results just trying practually something.

BR Markus

From personal experience, I too have a converted Nikonos R-UW 13mm. When I made the switch to the Nikon Z8, I found that the options to use any teleconverters went out the window. Even Kenko’s TELEPLUS HD pro 1.4x DGX Teleconverter for Nikon F lens, which features the screw drive older F series lenses did not provide auto focus support with any F to Z model lens adapter currently on the market.

To get my 13mm to work fully on my Z8’s I had to have the lens modified once more by Isaac Szabo to a Sony E mount, then mating it with a Megadap ETZ21 Pro Sony E-Mount Lens to Nikon Z-Mount Autofocus Adapter to get everything to work as it should. Even after doing that, the option of employing a teleconverter of any make or model is still off the table.

It seems some people are having success with the Kenko DG model on the Z8. Not sure if it is the DG "AF" or "AFd" models though.

This combo - Canon EF f/2.8 15mm fisheye / Kenko TELEPLUS HD pro 1.4x DGX Teleconverter for Canon EF / Fringer EF-NZ II adapter – does work on a Nikon Z8 but don’t expect the Canon 15mm fisheye to be super responsive as the lens motor not a silent wave type like the Canon and Nikon 8-15mm fisheyes.

8 hours ago, JohnD said:

It seems some people are having success with the Kenko DG model on the Z8. Not sure if it is the DG "AF" or "AFd" models though.

see my post above, my friend reports he is using the DG AfD version on his Z8.

12 hours ago, Chris Ross said:

see my post above, my friend reports he is using the DG AfD version on his Z8.

I did see. I am not sure if the "d" version makes a difference vs just the "AF" version. They are both 8 pin I believe. I would like to be able to use my 8-15 on the z 8 so I guess will track down one of the AF-d to use.