Photo / Video News & Reviews

Duxy’s Underwater Photography Blog: Available Light, Part 2

Published

8 years ago

January 11, 2017

Why so blue?

In part one of our series on Available Light, I looked at why wide angle lenses are such a deal breaker when trying to get great available light in underwater pictures.

Wide angle lenses are only part of the solution though, and a two pronged assault on the flat, blue problem pictures is what is needed.

We’ve established how you need to get much closer to your subject hence the wide angle lens, but we also need to address the lack of colour that will blight a lot of underwater shots.

We see a multicoloured vibrant reef, resplendent with hard and soft corals, populated by a variety of fish in a myriad of hues. Yet why do our pictures end up as just fifty shades of blue?

Our perception of what we are seeing is one of the main issues in available light underwater photography. So using Custom White Balance allows us to take back control of the situation.

What’s going on?

It helps if we understand a little of what is happening. As we descend the colours are filtered out progressively more as we leave the surface, with the reds and oranges disappearing first followed by the yellows then greens as we approach the relatively modest depths of 15 to 20 metres.

In our minds eyes though, especially nearer to the surface, we “experience” these colours because our brains are tricking us a little. Our cameras though see things as they really are, which is why folk are often disappointed with their first foray into underwater photography.

Pre-digital cameras, we had little alternative than to use strobes or flashguns to replace the colours in our shots.

With the advent of digital though came a new option to control the colour temperature in our pictures, and for each and every shot if we wished.

This opened the door to a whole load of exciting new possibilities for us underwater photographers, and this was called Custom or Manual White Balance.

Setting the right balance

Most digital cameras these days have an option to control the colours of their end results. This is accessed using the menu controls, and is normally a bunch of symbols under the heading of white balance. It’s very difficult to be specific here, as each brand, and even individual models of camera, are often different in this respect. If you’re not sure with your camera, or are thinking of buying a suitable camera once again, get in touch at duxy@scubatravel.com and I will advise you on the current choices.

With beginners this is the single most popular thing I start folk off with on our photo workshops.

When you find the White Balance menu on your particular camera you need to find the symbol in the middle. After accessing it your camera will tell you what to do onscreen. I can’t be more specific because it differs widely from camera to camera.

It’s usually the turning point when they realise that they are able to get great colourful underwater pictures. Here’s a selection of white balanced photos and videos that I shot with compact cameras from across the years:

https://www.youtube.com/watch?v=_V9UUQTSDpk

OK, hopefully that’s shown you that this is a valid technique for putting some colours back in your pictures.

How to do this is the big question though.

As I mentioned, most cameras are very specific with their means to correctly White Balance, but generally speaking the procedure requires you to show the camera a reference “white”. This can actually be a neutral mid grey tone too – a slate is one solution.

Or I tend to just use my hand (see below). You don’t need to fill the whole frame with your hand; better still to hold it at around the distance your foreground interest will be.

This is the usual distance and size in the frame of my hand when taking a white balance reading. I try and replicate the angle and depth at which I am shooting as accurately as possible too.

Follow and read your instruction book

And then you nearly always follow some onscreen instructions to take the reading.

What is clever here is that the camera will try and bring back the neutral mid grey or white back to what it should be, and hopefully then any colour cast, i.e. the blue of the water, will stop affecting the colours in your shots.

As you go deeper you need to take further readings, as the depth that you are at effects the white balance quite markedly.

Distance from subject is also an issue, so it helps to factor in this when you take the reading.

OK – if you follow this procedure in an ideal world and with the conditions in your favour, you’ll get great colourful pictures. Unfortunately we don’t live in a perfect world, and Custom White Balance doesn’t always provide such a simple solution.
So in the next instalment of this four part series we’ll look at some of the pitfalls to Custom White Balance, and in what circumstances it works best, and more importantly what circumstances it doesn’t work too well with.

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Duxy 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.

News

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

Published

3 weeks ago

October 28, 2024

Team Scubaverse

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

News

Introducing the Nauticam Super Macro Converter 3

Published

4 weeks ago

October 23, 2024

Team Scubaverse

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