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Torch Technology and what it all means

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It seems nowadays that everywhere you look there’s a new torch or video light for sale, all boasting amazing high power outputs, see for miles, burns for hours and hours… well I thought I’d throw some light (forgive me the awful pun) on the subject and try and clarify all the jargon and gobbledygook.

Lights on the surface seem to be very simplistic bits of equipment; some batteries, a bulb, some wiring and a case to fit it all in, and there you go  – you’ve got a torch. Unfortunately a great many of the torches and lights available at the moment are exactly this, and the technology behind LED lights is a great deal more complex than that. Let’s work through some of the basics which hopefully will make choosing your next light easier.

The one term that gets bandied about left, right and centre is lumens. It would seem that lumens are the brightness of a light source… well, yeah, kinda, but it’s not quite right. A lumen is a very specific measurement of light emanating from a single point and measured equally on a surface a given distance away from that point, surrounding it on all sides, normally a sphere.  Because of the vast amount of exaggerated claims by torch manufacturers in the US they have come up with a specific standard for measuring the output of torches, which is called ANSI/NEMA FL-1. This is very expensive to do because of the cost of the testing, so only the more dedicated manufacturers have their products certified. Look out for this on product packaging to be sure of a quality bit of kit. A small light will output 500 or 600 lumens nowadays with the top end kit producing 4000/5000 lumens, which is incredibly bright indeed. Some of these torches cannot even be turned on for more than a few seconds out of the water as they will start to melt without the water to cool them. These powerful lights even have safety mechanisms to prevent them from being switched on accidentally and this is now a legal requirement if you want to take them on a plane. When using these lights, even the less powerful ones, be mindful of not pointing it at other people as it is quite unpleasant being blinded by one of them – especially on a dive.

Another thing to be very mindful of is the fact that a very large number of LED torches on the market will, when turned on initially, achieve the quoted light output, but very quickly (sometimes within seconds) dim down to only a fraction of what they are meant to achieve. The better quality lights will maintain their output with just a drop off of about 10% all the way through until the battery is depleted. The Light and Motion range along with the exotic Keldan and surprisingly the Ikelite lights all perform very well in this respect. Newcomer RGBlue is also very well designed and works well throughout the battery life.

Talking from a video point of view a classic failing of inferior lights is the edge definition. We see many torches advertised as video lights and within seconds of turning them on we soon realise they’re just another torch. Video lights have a very specific quality and that is that there is no hard edge to the beam; instead the output bleeds off very gently. If they don’t do this the camera sees the edge and it stands out very clearly and looks poor. On this point something else worth mentioning is the beam angle. Many lights quote how wide the beam is for the benefit of the videographer. What is not considered is the fact that as soon as you take most torches underwater the beam angle is significantly reduced. To my knowledge there is only one light on the market which addresses this issue and that is the UK Aqualite Video 90. The Video 90 cleverly has a small dome on top of the emitter which corrects the refraction and the beam width remains exactly the same in and out of the water.  Another thing to be mindful of is that good LED lights have a ‘controller’ that regulates the output, maintaining the power. On some cheaper lights this can cause a slight flickering, which is not always visible to the naked eye but unfortunately very visible to the camera eye.

More serious videographers will also be concerned over the colour temperature of a light. We don’t notice it so much but all light has different colour properties. It’s quite an in depth subject and I don’t want to make this article too technical so I’ll keep it brief. White light is a mixture of all visible wavelengths of light. Different wavelengths represent different colours so in essence white light is a mixture of different colours. Depending on the manufacture of an LED emitter and the design of any light or torch, which may have a mixture of different emitters, the light will have a caste or slight bias towards a colour. A shift towards blue, for example, will make video or stills appear cooler. A shift towards red gives a warmer feel. Purist photographers/videographers will prefer a light which most closely simulates daylight. Colour temperature is measured in degrees Kelvin and daylight is measured at 5500° so look out for this on the box (although that is no guarantee that it will deliver that but it should be closer than if it doesn’t say anything at all).

From a photo/videographic point of view it is worth researching the right light before you buy otherwise you could be throwing money down the drain, and let’s face it – these things aren’t cheap.

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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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