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About DocTock

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    Wolf Eel

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    United States
  • Camera Model & Brand
    Nikon D800
  • Camera Housing
  • Strobe/Lighting Model & Brand
    Inon Z240.4 (x2)
  • Accessories
    Nikon 105 & Nikonus RS 13mm
  1. As Algwyn just pointed out there is no universal answer and the "best" suggestion is to experiment with what works for you and your rig. As an example, when I shoot WA my arms are basically the same length, but the ones mounted closest are buoyancy arms, providing lift "centrally" to the rig.When shooting macro, I switch the second section to short arms.
  2. Another vote for www.prescriptiondivemasks.com - HIGHLY recommend them. I'm on my second mask with near vision lenses lower aspect of the mask. The version I have now has both corrective for near lower and far upper. The initial setting of the lens put the "line" right at my pupil - they took the mask back and re-did the positioning.
  3. Interesting images on your website. Are you shooting all natural light? If so, I can definitely see where you find limitation in the D800. I agree that at greater than ISO800, grain definitely is visible. Everything shot wide angle in "Bonaire 2019" was done using an RS 13mm I had converted to communicate in full auto mode, and adapted to attach to a Nauticam housing by Andrej Belic. [Wetpixel article]
  4. If you are using the RS 13mm lens, get that converted for DSLR use and use your D800. A D800 quality housing where you can use the RS13mm (Nauticam, Seacam, Aquatica) should not be horrendously expensive at this point (honestly, I don't see that I would get much for my N800 and D800). Your composition is very nice, think about the results you could get with housed DSLR and the same RS lens.
  5. I've had really great workshops (I learned a LOT) on trips with Alex Mustard and with Erin Quigley. Granted, they both had their cameras in the water, but I found both to be almost infinitely available and teaching non-stop.
  6. Dove with Cortez Divers when on an Alex Mustard La Paz trip in 2017. They were very nice to us and straightforward - although my experience may be colored by the fact that our group took over 2 boats for 5 days consecutively, so they may have been more flexible/ accommodating for us. Of note: Like other Caribbean and Mexican dive operations, expect minimal assistance with gear except for tanks. They were careful with our camera gear from the dock to return, but no camera room, etc. The end of the dock/ entry to the boats also has the winch to lift boats out of the water immediately overhead (Watch your head!).
  7. The question I ask myself when I pack carry-on vs checked is "what is the minimum I need for this trip"? This usually leads me to put: camera, batteries, strobes, macro glass, WA glass, macro port in a ThinkTank backpack (no wheels!) and my housing, octo, dive computer, and a dive skin in a tiny roller. All this gets carried into the plane with me. Everything else (including big dome, arms, snoot, clothes, fins, dive gear etc) goes in checked bags. This way, if my checked bags never make it to whatever destination I'll be able to have a trip. It'll be spare and I'll depend on the kindness of strangers for arms and charger space, and I'll need to rent all the dive stuff minus my octo, but I'll not have a total "loss".
  8. Another question to ask (the one in my head) is when is Nikon going to revamp the 850? I waited on getting an 800 - the 810 was released about a month later. Checking on NikonRumors.com, it sounds like the D6 is in development pathway with a suggested release end 2019.
  9. I just got off the phone with a really nice person at Reef Photo who explained that the 70mm was the original recommendation (circa ~2013). The suggested extension for best results with the Nikon 16-35 f/4 VR lens is now 90mm.
  10. @ReefPhoto @Ryan @Nauticam Anyone care to reply to this question about an apparent Nauticam change in recommendation for extension tube with a 230mm optical glass dome from 70mm to 90mm?
  11. Interesting! I found this thread when I was searching for information/ discussions on this exact topic. When I bought my NA-D800 I was sold a 70mm extension to go with a Zen 230mm glass dome. I remember that the port chart at the time indicated that to be the "right" extension. I just saw the new port charts from Nauticam that now show a 90mm extension as recommended. Is this why my 16-35 images are always slightly blurry????
  12. When I went to Fiji I brought - Macro: 105, wet lenses x2 WA: RS 13mm, Sigma 15, Nikon 16-35, 230mm dome Fiji was (except for some bad weather that limited vis) more WA than macro. That said, I achieved one of my best anemonefish images with a 105 on that trip... From other folk on my trip who went to Beqa - the water is loaded with particulate and not requiring the "best" of corner sharpness. Why not the Tokina 10-17 with the Kenko, etc and the 8.5" dome? [sorry - not an expert if this will work.) It would seem like this would give you the most opportunities.
  13. $425 with Shipping in USA and PayPal Included (International Sales fine - actual additional cost for shipping and money fees) Happy to hear offers.
  14. $500 + shipping Liquivision Lynx Dive Computer + Liquivision U2 AI Transmitter - linked with this Lynx Dive Computer - included: adapter to allow same size battery as computer unit - included: extra o-rings for battery case - included: 3 disposable transmitter batteries of unknown charge Also included: - Liquivision computer interface and USB cable - Charger for rechargeable batteries - 2 padded rigid carry cases (I used one for Computer + Transmitter, the other for charger, etc) - 6 rechargeable batteries that work in both computer and transmitter - multiple packs of extra o-rings for battery compartment This was my personal dive computer for the past few years. It's been all over the world and functioned well for Recreational Diving. There are 77 recorded dives on this computer and it was serviced at the original Liquivision in Canada prior to my last dive trip 11/2017. Information from the internet: Liquivision Lynx Dive Computer with Transmitter Features Liquivision Lynx Dive Wrist Computer with Transmitter Maximum Readability, Ergonomic Comfort Patented Tap-Interface Bright Full-Color OLED Display Disposable 3.6 Volt, ER17335M User-Replaceable Battery (included) 2-Mounting Options: High Quality Strap or Bungee-Cord Algorithm: Buhlmann ZH-L16C Maximum Depth Rating: 660' (200 meters) Optional Gradient Factors, Gauge Mode OLED Screen is Readable in Complete Darkness Imperial/Metric Settings 3 Gases (air and nitrox 21-100%) Built-In Dive Planner and Dive Simulator Dive Logging Dive Time and Visual Alarms Liquivision Lynx Transmitter Get Streamlined, Ditch Your High-Pressure Hose Easy Installation and Connection Threads to 1'st-Stage Regulator 7/6" HP Port Adds Unique Functions to Computer Monitor Buddy Air, or Group Air of Up to 9 Other Divers Air Time Value: Based on Breathing Rate and Current Depth Value: Reaches Zero at 700 psi (48 bar) Includes: Disposable 3200mAh ER26300M Battery Spacer for Use of 1700mAh ER17335M Batteries (Optional) Transmitter Uses Ultrasonic Waves Range of 330' (100 meters) No "Pairing" of Computer and Transmitter Required Ultrasonic Rather than Radiofrequency Waves Signal Never Affected by Electromagnetic Interference from: HID Dive Lights Camera Strobes
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