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Duxy’s Underwater Photography Blog: Available Light, Part 1

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available light

This blog is all about getting back to basics, and learning how to master the art of available light while shooting underwater.

When I first got into underwater photography, I only ever shot available light, eschewing the benefits of strobes until much later. I did this because although I was involved in professional photography onland, I never imagined that I would want or need to be weighed down with too much kit on a dive, so I shot with only a compact camera and a very wide angle lens. This helped me to understand the requirements of the fast growing number of divers keen to document their underwater experiences, for whom diving definitely took first place over photography. This coincided with the compact digital photography market place starting to produce very capable small point and shoot cameras, with useful functions for underwater use.

And so I started to champion this style of unhindered shooting as a great way for all divers to get great pictures, and my first articles were all about how to do this effectively and with the minimum of expense and equipment.

I have since also embraced the use of strobes too, but this style of minimalist photography is still enormously appealing.

This shot below was taken on my first ever Liveaboard trip nearly 9 years ago with a digital camera and using an add on fisheye lens with an old Canon Ixus compact camera, and this was the moment when I realised that this “new fangled” technology had some enormous benefits over the bulkier, strobe laden kit of the past.

Go Wide

So, what first to think about with available light shooting?

I would personally suggest that you think very seriously about tricking out your camera with a very wide angle lens.
If shooting with a compact camera, and your camera is a compatible one, then the lens as it is will be fine if you are shooting fish ID shots of the usual reef denizens.

However if you want to get good colours and great shots of larger things, like the dolphins in the main photo above, or clear shots of wrecks or reefscapes, then you need to go much wider than the camera will go with its built in lens.

Why is this?

Well the medium within which we choose to indulge our hobby, even at its clearest, is much denser than air, and colour contrast and clarity will drop off very quickly as you increase the distance between you and the subject. Those dolphins above were around a metre or so from me, which is one of the reasons you can make out the finer details in the shot.
And if I had been using the camera unenhanced without a lens attached that had nearly 180 degrees of view, then to get this group all in shot I would have needed to have been around 10 metres or so away.

available light

Both pictures were taken with the same compact camera. The top shot was just the camera on its own. And to frame it like this I had to be around 5m away. However with the wider angled lens attachment I am now only a meter away for the shot at the bottom. Which is much clearer and sharper simply because I am a lot closer.

Get Close

Getting close to your subject is the key element here, and if it’s a larger subject like a wreck or a reefscape, pod of dolphins or your buddy even, then the only way that the shot is going to be as clear as the shots you see in the magazines is if you are using a wide angle lens much wider than you may be accustomed to. These attach using simple adapters or screw into the front of your housing, and really expand on your underwater photographic possibilities.

If you are in the market for a simple compact camera and want better than average results in these scenarios then please get in touch at duxy@scubatravel.com and I will give you the current up to date advice on what the best choices are for underwater. Sadly just because a camera is great on land doesn’t automatically make it suitable for underwater use.

Of course this simple physics issue also applies to higher end cameras like DSLR’s or Mirrorless cameras, but generally those folk have already come to that understanding as they have travelled up the learning curve, and purchased the relevant lenses and equipment.

available light

The top of Shark Reef in Egypt only possible to get in and keep clear and colourful by using a very wide angle lens and a technique called Custom or Manual White Balance.

Banishing the Blues in Part 2

The shot above was taken with a fisheye lens attached to one of the early Mirrorless cameras, and what I have explained above is one of the reasons the shot is clear and showing good contrast. However in the second part of this series I will be showing you how to get the great colours we associate with this type of shot, by using a variety of techniques to remedy the boring blues that blight a lot of available light for underwater photographers.

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Scuba Travel new logoDuxy is the in house photo-pro for UK-based dive tour operator Scuba Travel. To find out about availability on Scuba Travel’s underwater photography workshops hosted by Duxy click here.

Duxy has worked for nearly 20yrs in the dive industry, starting at the pointy end of dive tourism in Sharm as a guide and videographer, transitioning into a fixture back home in the U.K. helping and advising on all things underwater photographic, and as a popular speaker at shows and dive clubs delivering talks. He now works as the in house photo-pro for ScubaTravel and has conducted nearly 40 overseas workshops for them, helping all flavours of underwater photographer with everything from GoPro's to DSLR's to improve their shots. He speaks fluent Geek but his motto is that what really counts at the end of the day is 'pictures not pixels'.

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Meet Insta360 Ace Pro 2: Redefining Action Cameras With Unrivaled 8K Image Quality & Smarter AI

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insta360

Insta360 is thrilled to announce the latest addition to its Ace series, Insta360 Ace Pro 2. This groundbreaking wide-angle action camera delivers unparalleled image quality, smarter, easier capture powered by AI, upgraded audio, and an improved rugged design made for action at its most extreme.

Co-engineered with Leica, it delivers serious performance upgrades with the industry-first dual AI chip and state-of-the-art imaging courtesy of a new 1/1.3″ 8K sensor and Leica SUMMARIT lens with a 157º field of view. Creators can experience smoother videos with higher frame rates at 8K30fps and 4K60fps Active HDR, PureVideo for excellent low light performance, a bigger 2.5″ flip touchscreen and more.

The action camera utilizes Insta360’s advanced AI technology to offer a smarter experience from shooting to sharing. Innovative functions like the option to pause or cancel a recording, gesture and voice control, Auto Edit, and AI Highlights Assistant completely transform the experience for creators. With no more complex workflows, anyone can experience a simpler way to film and spend more time immersed in the moments they love.

insta360

Insta360 Ace Pro 2 significantly improves on its design, offering a more rugged, reliable action camera. Its waterproofing has increased to 39ft (12m), and it offers crystal-clear audio with an integrated Wind Guard and a removable Lens Guard to handle whatever you throw at it, providing full flexibility for action and sports enthusiasts.

“Our goal was to refine and enhance the groundbreaking features of the original Insta360 Ace Pro to deliver an unparalleled experience,” says JK Liu, founder of Insta360. “We are confident these upgrades establish a new industry standard. Not only do they bring significant advances in AI, they empower creators to capture what was always impossible with other action cameras, opening the door to unprecedented creative potential.”

Insta360 Ace Pro 2 is available to order today worldwide via Insta360.com, as well as trusted retailers and select authorized partners.

Unparalleled Image Quality, Day and Night

The Leica SUMMARIT lens immediately sets it apart from competitors with its state-of-the-art image quality. Combined with an upgraded 1/1.3″ 8K sensor offering 13.5 stops of dynamic range, Insta360 Ace Pro 2 delivers simply breathtaking visuals in situations other action cameras simply can’t handle.

Further contributing to its image quality and performance is the industry-leading dual-chip design. Insta360 Ace Pro 2 is the first action camera with a dedicated Pro Imaging Chip that handles image processing and noise reduction, while a separate 5nm AI Chip handles further image processing and overall camera performance, providing a smooth, seamless user experience. The dual chip also enables more shooting modes and higher specifications, such as 8K30fps video, 4K60fps Active HDR (High Dynamic Range), and upgraded PureVideo. Even in fast-moving motion and high-intensity action, creators can enjoy smooth, sharp videos thanks to the higher frame rates or slow it all the way down with crisp 4K120fps slow motion.

A complex, custom-trained AI neural network underpins PureVideo, a specialized shooting mode that drastically reduces noise and enhances details in real time for cleaner, brighter images, even in extreme low light. Whether it’s twilight strolls or evening rides, creators can record what they never could before. For the daytime, upgraded 4K60fps Active HDR brings out all the details in intense highlights and shadows for more vibrant footage. Meanwhile, a wider 157° lens FOV captures more of the surroundings, perfect for vlogging or when the scenery really matters.

Exclusive Leica-engineered color profiles infuse footage with their signature aesthetic, adding a touch of elegance to every shot. Insta360’s devotion to color accuracy is seen elsewhere with Insta360 Ace Pro 2’s ability to retain rich and precise colors, even underwater.

Ready for Action Anytime, Anywhere

The upgraded design proves to be even more rugged, ready for when you ramp up the action. Waterproofing has increased to 39 feet (12 meters) or 197 feet (60 meters) with the Dive Case, and it handles temperatures as low as -4ºF (-20ºC) with ease, perfect for winter sports and extreme climates.

The new, removable Lens Guard provides greater all-around protection, meaning creators can feel confident to push the limits further and capture the impossible, knowing their action cam is up to the challenge.

An all-new Wind Guard keeps wind and noise at a minimum during those peak moments, ready to snap on and off as you need. With refreshed audio algorithms bringing professional-grade clarity to your content, you can immerse your viewers like never before. What’s more, the magnetic mounting system lets you seamlessly switch between accessories. Less time spent unscrewing and screwing your camera and mounts, more time in the moment.

Insta360’s leading FlowState Stabilization technology ensures videos remain incredibly smooth no matter what, while 360º Horizon Lock, now applied automatically in-camera, keeps everything perfectly level. Prioritizing performance and convenience, Insta360 Ace Pro 2 sports a bigger 1800mAh battery and a new Endurance Mode that offers a 50% longer runtime at 4K30fps than Insta360 Ace Pro. Fast charging powers the battery to 80% in 18 minutes or 100% in 47 minutes, so you can get back to the action quicker.

Insta360 has expanded its compatibility with several top third-party sports accessories, allowing action and sports enthusiasts to add a new level of detail. For data-rich videos, overlay real-time stats from third-party sports brands, including Garmin, Apple, COROS, and more. Alternatively, users can add stats from their phone directly in the Insta360 app without any extra gear or use the GPS Preview Remote for easy live preview, remote control, and real-time GPS data. For moto vloggers, pair Insta360 Ace Pro 2 with your motorcycle helmet headset from Sena, Cardo, and more for clear dual-track audio and hands-free control every ride.

Made for those who demand the highest standard of action capture, Insta360 Ace Pro 2 offers the perfect combination of durability and high-quality performance to capture life’s thrills with confidence.

insta360

Smarter, Easier Capture & Editing

Insta360 Ace Pro’s flip touchscreen proved an essential and convenient tool for creators and has been further upgraded to 2.5 inches. With a 70% increase in pixel density, a 6% increase in brightness and a 100% increase in flip durability, it allows for perfect framing and easier preview for vlogging, selfies, and difficult angles, all while remaining visible under bright sunlight. Instead of guessing if your shot looks perfect, you can shoot with confidence, knowing it is.

Internally, Insta360 Ace Pro 2 offers innovative solutions to problems that have hindered action enthusiasts for years:

  •   4K Clarity Zoom – Want a close-up but the image quality becomes too grainy? Zoom in and out 2x without losing quality.
  •   Pre-Recording – Never miss a moment with up to 120 seconds of footage saved before you even hit record.
  •   Gesture & Voice Control – Use quick hand signals or verbal commands to control the camera, such as start/stop recording or take a photo, ideal if it’s mounted out of reach.
  •   Pause/Resume Recording – Got time between shots? Hit pause and continue recording when you need to keep everything in one continuous file for easier file management and editing.
  •   Timecode – Seamlessly synchronizes multiple cameras for an efficient editing workflow.

Insta360’s revolutionary AI features demonstrate a commitment to making shooting and editing as accessible as possible. Anyone, regardless of their skill level, will be amazed at what they can create. For those who aren’t confident editing, AI Highlights Assistant automatically finds the best moments from a video and delivers the highlights for review, all in-camera. Creators can merge every thrilling moment into one incredible recap or choose the ones their favorites and delete any unwanted clips to save storage.

The Assistant also helps craft your next reel from your adventures and pushes it directly to your smartphone via the Insta360 app. Look back on all your Memories and share those unforgettable moments in seconds.

Acting as a full editing suite in your pocket, the Insta360 mobile app fully embraces the game-changing possibilities of AI with advanced Auto Editing, one-tap templates and creative Shot Lab effects. Instead of spending hours learning complex tools and editing workflows, AI does it all for you, bringing your clips to life with dynamic cuts and transitions. Creators can even achieve the infamous Invisible Selfie Stick effect with the AI Selfie Stick Eraser in the app for third-person views. Looking for a real twist? AI Warp uses preset or custom keywords to bring your wildest ideas to life.

Available Now

Insta360 Ace Pro 2 is available to purchase today worldwide via Insta360.com and select retailers. The Standard Bundle retails for US$399.99 and includes a Wind Guard, Battery, Standard Mount, Mic Cap, and USB-C Cable. The dual battery bundle includes the same accessories and two batteries for US$419.99.

www.insta360.com

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Introducing the Nauticam Super Macro Converter 3

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Nauticam SMC-3

The SMC-3

Nauticam is proud to introduce the SMC-3, the latest evolution in our line of water contact optics! Designed as a renewed version of the acclaimed SMC-1, the SMC-3 boasts a lightweight build—now only one-third the weight of its predecessor—without compromising on optical performance.

SMC-3 Specifications

Dimensions OD 70mm x H 32mm 
Weight in Air 307g
Weight in Water 215g
Max Magnification (*1) 2.4x (lens dependent)
Working Distance (*1) 51-103mm
Lens Construction 3 elements in 2 groups
Lens Coatings Anti-reflection Coating
Mount Thread Diameter M67
Depth Rating

100mm

Nauticam SMC-3

Tested with Nikon AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED

Key Features

  • Ultra-Lightweight Design: Weighing in at just one-third of the SMC-1, the SMC-3 offers unparalleled portability for on-the-go use.
  • Superior Optical Performance: Enjoy the same exceptional clarity and precision you’ve come to expect from the SMC series.
  • Increased Working Distance: The redesigned lens allows for a greater working distance, meaning it’s easier to use and provides enhanced versatility.
  • Premium Materials: Crafted with advanced materials to enhance durability while minimizing weight.
  • Cost-Effective: Slightly more affordable than the discontinued SMC-1, the SMC-3 delivers exceptional value.

Uncompromised Optical Quality

The Super Macro Converter 3 is constructed from lenses that are precision crafted of specially formulated low dispersion optical grade glass, ground to the most demanding standards. These exceptional measures, enhanced by broadband anti-refective coatings effectively reduce common optical issues such as chromatic aberrations, coma, spherical aberration, and field deformation associated with underwater macro photography using traditional magnifying lenses. These optics are assembled in a rugged hard anodized aluminum housing, and nitrogen purged during assembly to eliminate fogging.

Stunning Magnification

When combined with a full frame camera and a 100mm or 105mm macro lens, the device converts the optical system to provide a maximum of 2.4X magnification factor. In other words, a subject area of 15.6mm X 10.4mm will fill the whole frame of a 36mm X 24mm sensor.

Improved Sharpness and Contrast

As the Super Macro Converter 3 is optimized explicitly for using together with a macro lens underwater, images captured exhibit exceptional sharpness compared with conventional magnification lenses. Thanks to the broadband multi-layer anti-reflection coating on each surface of the lenses, images also exhibit higher contrast.

Superb Light Transmission

All the lens elements installed inside the SMC are optically optimized to appropriate diameters so as to provide maximum light transmission. The SMC doesn’t suffer from vignette issues under even the most extreme conditions. The broad band multi-layer anti-reflection coating on all surfaces also greatly improves light transmission.

Optimized for Autofocus

By utilizing a specially developed algorithm in the optimization process, the SMC renders superior image quality over the full focusing range of the camera lens (which becomes ~50 to ~100 mm in front of the SMC). Also benefitting from the high brightness and contrast of the image, the autofocus system of the camera usually works acceptably well within this range.

Nauticam SMC-3

Ample Working Distance

Even at the maximum 2.3X magnification, there is still more than 50mm of working distance between the front element and the subject with 100/105mm macro lenses. This working distance is crucial when capturing behavior with skittish subjects.

Resolution

High resolution was a primary design goal of the SMC project. This has been achieved using computer aided optimization and high grade optical glasses with unique refractive and dispersion properties. Images taken with this new system exhibit very high resolution and quality. Results have exceeded expectations, and these images rival the quality of the macro lens in air.

Smooth Bokeh

The Converter retains the optical properties of the macro lens for the whole system underwater, resulting in a blurred (out of focus) background that has a pleasing smoothness and creamy look, without the normal purple and green fringing.

Avoiding Diffraction

Due to the overall superior optical performance of the SMC-3 it is possible to shoot larger apertures with excellent image quality. This avoids reaching the diffraction limit of high resolution sensors, and allows selective focus effects with narrow depth of field in super macro images.

For more information about the Nauticam Super Macro Converter 3, which ships in November, click here.

www.nauticam.com

 

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