Walt Stearns

I have a Kraken Sports Macro Pro Series KRL-05S +6 M67 Diopter that has been used only a few times (see photos). The KRL-05S +6 (designed to fit M67 size port threads) provides a high magnification of +13 with an overall image quality on par with similar lenses like the Nauticam and AOI.

Underwater Achromatic Close-up Lens

Construction: 4 Elements 3 Groups

Compatible Camera (Up to): Sensor size 36mmx24mm (135mm Full Frame)

Camera Lens: 60mm-105mm

Diopter (Underwater Focal Length): +6 (166.67mm)

$135 USD with free shipping in the USA.

I would be over the moon if Nikon would make a Z series 15-24mm Fisheye zoom. But, that's just a dream since they don't seem interested in making any kind of fisheye lens.

I have made attempts at using the Nikon Z 1.4 Teleconverter with the Megadap Canon EF to Z Adapter with a Canon 8-15 Fisheye on my Nikon Z8. I went even as far as removing the filth lug the receiving end of the Nikon Z 1.4 Teleconverter so that anything with Z mount would properly fit it. The reasoning for Megadap’s EF to Z adapter was that the inside was large enough out of the box to accommodate the protruding element on the Z 1.4 Teleconverter. The end result, I could not make it happen. Every time I turned on the camera, I would get a message that this was an unacceptable lens with a blacked viewfinder and rear LCD. My guess is that there is something in the electronics that prevents it from being compatible outside of a select group of Nikon lenses.

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.

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.

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.

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.

My personal website waltstearns.com is up along with a completely revamped Wakatobi Blog site - Wakatobi Flow - https://blog.wakatobi.com which I am currently reloading revised content on to.

Jordi, to answer your question, the Megadap ETZ21 Pro adapter works well enough for the job with Sony E mount lenses. I I recently had some auto focus lag on my Z8 but after updating the Megadap firmware that problem went away.

In regard to using Sony E mount lenses on a Nikon Z8 body, I having been using a Megadap ETZ21 Pro Sony E-Mount Adapter for my recently converted F mount Nikonos RS 13mm to a Sony E mount. Even with the latest Firmware update to 2.01 this setup has continued to work very well with no errors on my two Nikon Z8 bodies.

Back when I made this change, I found that Neewer model NW-ETZ Pro Autofocus Adapter for FE/E-Mount Lens to Nikon Z-Mount Cameras to functioned well enough for consideration as a second option. As for Viltrox’s latest AF Adapter for E-Mount lenses on Nikon Z mount bodies, I would hold off unless you are willing to play crash test dummy. Looking at reviews on other Viltrox Lens Adapters, their ratings have been less than stellar. 

Here is one of mine – www.underwaterjournal.com

I am currently finishing up my photo website which I expect to release Dec 1^st, 2024

Sold, no longer available.

Dropped the price on my Nauticam N120 x 30 extension ring to  $225.

On 8/29/2024 at 8:56 AM, fruehaufsteher2 said:

Unfortunately the scratches are not unexplained… sharp edge of a concrete wall… I only wear the golden marriage ring, and that one is softer than the glass. I‘ll keep you updated!

The reason brought this up, is that personal experience I have had even a gold wedding band leave behind to very visible scratches in a glass dome port. Hence, I not longer wear anything on my fingers or wrist when setting up my camera system.

Question, were you wearing a jewelry - rings, wrist watch, etc. at the time? I have personally found them to a large source of unexplained scratches on dome ports.

Matt, the auto focus with the Megadap ETZ21 Pro adapter worked pretty well, but I want to do a few more dives with it to give it a more finale approval.

Going from a Nikon D850 to Z8 my Seacam converted Nikonos R-UW 13 became unusable as there is no working solution currently available for a F-mount lens with the old fashion autofocus to work via an adapter a Nikon Z mount or any other mount for that matter.

To bring it back to life for the second time I just had Issac convert from a Nikon F mount to Sony mirrorless E mount using a Sony FE 50mm f/1.8 Lens ($198.00 from B&H) as a doner lens. From there, I purchased a Megadap ETZ21 Pro Sony E – Nikon Z adapter (price point of $249.00) to provide a means for these two different mounts to effectively work together.

Was this endeavor worth it?

Dam straight it was.

Here are two images from a battery testing in ocean, not a pool to see what that this lens can do while shooting at wide apertures from F/2.8 to F/6.3. Note, the two images here were shot at 1/200 sec at F/3.2. Neither have undergone any cropping or de-fishing, I did however reduce the file a bit so they would load faster.

I am selling two different model Kraken Sport Quick Disconnect Arm segments.

The first one is a KR-BBQD Double Ball Quick Disconnect Arm (SKU: KR-BMQD-1) with a standard 1-inch ball at each end.

The second one is a KR-BMQD BaII to YS mount Quick Disconnect Arm (SKU: KR-BMQD)

Made from anodized aluminum and stainless, these Quick Disconnect arm segments provide a means to quickly and easily take off your strobe or focus light to get creative.

Both are in excellent condition – both functionally and cosmetically.

Selling price: $25 each, or $40 together, which includes free shipping in the USA.

Selling an earlier model 30mm Nauticam N120 extension ring with lock #21130.  

The condition of the ring is exactly as shown in the photos.

Includes rear cap and spare O-ring.

Selling price is $275 which covers shipping in the USA. Buyers outside the of the US will need to cover postage cost.

Nauticam NA-D850 Housing with Nikon D850 Camera has been sold.

Selling Nauticam NA-D850 housing with Nikon D850 plus several extras including a Nauticam 180° Straight Viewfinder.

Condition of Nauticam NA-D850 housing: 

Cosmetically, finish is still very good-looking. Mechanically, everything is in top notch working order. The housing is fitted with Nauticam’s Manual Flash Trigger and M16 Vacuum Valve which comes with a hand pump and removal tool. I am also throwing in a Nauticam 180° Straight Viewfinder. The finder is an earlier general having been around back when I was shooting a Nikon D500, so the exterior finish has a much more worn look to it, otherwise the optics are clean and sharp.

Nauticam NA-D850 Housing includes:

Nauticam 180° Straight Viewfinder

Nauticam Standard Viewfinder that comes with housings

Nuaticam M16 Vacuum Valve with Hand Pump and removal tool

Nauticam Manual Flash Trigger

Nauticam Housing Carrying Case

Spare Housing O-ring

Allen Wrench Set

The Nikon D850 camera body included in this package is in impeccable condition with a shutter count of 21859 actuations. Due to this camera body was only used in the camera housing it still retains a like new appearance having no scratches or marks in the finish or LCD screen. 

Nikon D850 Camera comes with:

Nikon D850 body

Nikon EN-EL Battery charger with 3 Nikon EN-EL 15a batteries

5 Lexar 64 GB XQD and 1 Nikon 64 GB XQD media cards.

2 Lexar XQD USB card readers

Am also throwing in a Really Right Stuff Camera L-bracket for the D850 and a Godox TT685N Flash with full TTL functionality as good as any top selling Nikon Flash. Selling these because this flash only works in manual mode on my Z8.

Selling price $4500.00 USD plus shipping.

All Items will be shipped out between two boxes.

First box dimensions: 18 x 12 x 12 inches

Second box dimensions: 11 x 10 x 9 inches

Total Shipment Weight: 21.5 lbs.

insomniac you are the 8th person I have heard who has had sync issues with the Turtle TTL converters. I would not be quick on blaming the strobes in that case.

The Yongnuo YN560Li Lithium Speedlite on camera flash uses two 18650 Rechargeable Li-ion Batteries.

Since day 1 when Retra introduced their underwater flash system, we were advised to use Eneloop pro AA Rechargeable NiMH Batteries which individually have a battery voltage of 1.2 V with 2550 mAh / 3.06 Wh

Now with 8 of these batteries bundled together you then have 9.6 V, but your battery capacity is still going to provide 2550 mAh / 3.06 Wh.

Whereas with 8 EBL AA Li-ion batteries which have a battery Voltage of 1.5V with 2200mAH / 3.3 Wh individually are bundled together will then have a total voltage of 12V, yet the battery capacity for all 8 together remains at 2200mAH / 3.3 Wh. 

While it was advised to stay away from the latter, now comes Retra’s new Power Vault Li-Ion battery pack which is stated to provide 7.2V with a battery capacity of 5555.56 mAh / 40 Wh.

To me, this is a bit of a head scratcher.

Sold to RobertR