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There's been some discussion of late of various combinations of lenses with a Kenko 1.4TC: what works, what doesn't. I've got both the Kenko 1.4TC DG and DGX models, a Nikon D500, a Z6, the Tokina 10-17 and the Nikkor 8-15. I thought Wetpixelers might find it useful to see the results of the various combinations. What works is in bold. D500 (DX) D500 + Kenko Telepro Plus 300 DG + Tokina 10-17: AF works; no vignetting at any focal length D500 + Kenko Telepro Plus 300 DGX + Tokina 10-17: AF works; no vignetting at any focal length D500 + Kenko Telepro Plus 300 DG + Nikkor 8-15: Err message. No AF; no vignetting at any focal length D500 + Kenko Telepro Plus 300 DGX + Nikkor 8-15: AF works; no vignetting at any focal length Nikon Z6 (and, presumably Z7) with firmware 3.0 Z6 + FTZ + Kenko Telepro Plus 300 DG + Nikkor 8-15: AF works; vignettes with hood attached after 11 Z6 + FTZ + Kenko Telepro Plus 300 DGX + Nikkor 8-15: No AF; No aperture readout; vignettes with hood attached after 11 Z6 + FTZ + Kenko Telepro Plus 300 DG + Tokina 10-17 : No AF; aperture read out; vignettes with hood attached after 11 Z6 + FTZ + Kenko Telepro Plus 300 DGX + Tokina 10-17 : No AF; No aperture read out; vignettes with hood attached after 11 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 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) I don't have the Kenko HD model so can't comment on that but perhaps if someone has, they could add the data for that. Hope this helps, guys Tim

Hey folks I'm looking into whether I can get made a Subal zoom ring (to use with Type 4 ports) for a Nikkor 8-15mm lens and the Kenko 1.4TC. Although Subal has a zoom ring for the Nikkor 8-15, they do not currently have a zoom ring for the 8-15 + Kenko 1.4TC. However if enough people are interested...... If this would be of interest to you, could you let me know? I understand price would be broadly the same as the current Subal zoom rings although maybe slightly more given the need for extended length. Thanks!

Just having returned from a couple of excellent weeks diving in Bonaire, I wanted to share a couple of thoughts: First - Big Thanks. I had a couple of "issues" with my camera gear during the trip. Post to Wetpixel and PMs were answered really quickly and helpfully by a raft of people. While not wanting to embarrass anyone - or miss anyone too - thanks especially to Chris, Tom, Pavel and Oskar at Retra for advice on a range of diverse issues. You guys are brilliant and kept me relatively calm and relatively sane. Excellent advice, quick replies, thoughtful ideas..... I have written this before, but I really do think think Wetpixel is an excellent community. Folks are so good to share their advice, experience and knowledge freely and helpfully. And, even better, WP seems to suffer with almost none of the utter cr*p and abuse that seems to ruin so many other forums (check out the BBC football (soccer) Have Your Say site!). Moving on (and again, apologies if I have't thanked anyone who chipped in)..... Like many on the forum I've gone from DX cameras (Nikon D100, D200, D300) to FX (D800) and have now done about 100 dives back on DX with a D500. Some conclusions which I thought worth passing on: FX vs DX - DX setups are slightly cheaper: a DX body costs less than an FX. - DOF is better on DX which is especially helpful on macro. - Though I was concerned that moving back to DX I would miss much of the image quality that I had on the D800, this has proved not to be the case. D500 DX is excellent. I must admit I don't make mega-prints and a lot of my output I (try) sell via agencies. No problems getting images accepted following the switch. I can't speak of course for the D850. - DX is easier on the WA port issue. I really liked the Sigma 15mm and the Nikkor 16-35 for the D800. The Sigma was easy to "port" but the 16-35 was, in my view, a bit of a devil requiring a 230mm huge dome port. (I've never tried though the Sea and Sea converter). That port was expensive and, for me, hard for travelling on European baggage allowances. By contrast the DX only needs either a 100 dome port or the DP-FE size. - The Nikkor 8-15mm works really well on DX between 15 and approx 11. Image quality is great. It works equally well with the DP100 or DP-FE - I'm still playing around with a 1.4 TC and, as I have reported elsewhere, I've found that the classic Kenko 1.4 DG Telepro300 won't work with my D500 and the 8-15. It does work with my Z6 but not on a D5. Go figure. As you might have read elsewhere and as others have confirmed, the Kenko 1.4 TC DGX will work. I'll get hold of one soon and try it. Bonaire - If you are thinking of diving Bonaire: I've been going since the early 2000s and found the reef this time around in the best health I have seen for some years. Definite signs of coral growth; work by the local agency, SINAPA, at coral growing; new anemones around with Spotted Cleaner Shrimps on them (not seen them for years) and, generally, reefs with clouds of brown chromis and the usual suspects going about their lives. - Snooting: if you fancy a stab at shooting, Bonaire is great place to try it out with lots of macro life. I say "stab" meaning I would encourage folks not to stab themselves in frustration over snooting. UW photog is tough enough dealing with moving critters, moving camera, moving photographer, moving currents, viz, blah blah. Snooting adds a whole new area of pain. But when you get it right... Sweeeeet.... a couple of pics attached. - We did all shore diving with tanks from Dive Friends. Friendly, very convenient with filling stations all over the west side of Bonaire. I can recommend them. We didn't do any boat dives. We never used DMs or guides. Navigation on Bonaire is easy - and the critters are not hard to find. Pedersen cleaner shrimps, Spotted Cleaner Shrimps, Yellowline Arrowcrabs, Gobies, the occasional whip coral shrimp, drums, jawfish..... Well just some thoughts