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Duxy’s Underwater Photography Blog: Available Light, Part 4



This is the final part in our series on shooting in available light. Part one was all about shooting with wide angle lenses; part two covered Custom White Balance; and part 3 was about the pitfalls and problems of shooting with Custom White Balance.

For the fourth and final instalment I am going to cover all of the extra bits and little things that don’t fall into the earlier sections.

So we are going to look at colour correction using filters and also colour correcting after the fact when you are shooting on a camera that produces RAW files.

Processing wreck shots, and whether or not to go black and white.

And is it possible to shoot available light macro?

Correction Filters and the Underwater Mode

Some cameras don’t have quick and easy to use Custom White Balance controls, which can put folks off. And they often want a one stop solution.

In days of yore, (and tbh sometimes these days too) with some cameras you had no option but to use a filter, which is normally of a reddish magenta colour, to restore colour balance to your underwater shots. And they work fine as long as you understand that they only really work within a very narrow band of depth, typically around 8-12m. This is because as explained in our earlier white balancing blog, our colours are diminished progressively as we get deeper, so any fixed method of colour correction such as a filter is really only going to work efficiently at one depth. And we would need a collection of filters of variable intensity as we got deeper, which is impractical to say the least.

To be honest, unless there is absolutely no alternative with your camera (GoPro’s and other cameras of this type fall into this category), I would steer away from conventional colour correction filters because they also steal quite a bit of light from you. Or as in the cases below only shoot with them really shallow – no deeper than around 8m – for the best results.

A classic reef scene that could be taken with any camera from a GoPro upwards. This is unfiltered and what a lot of people experience when first shooting underwater.

Here the same shot as previous, but this time I’ve used a colour correction filter to restore the colours. Note however that I am very shallow and this is where these filters work best.

Some cameras have a dedicated underwater mode, but this is usually little more than an electronic version of a coloured filter and doesn’t always do much, but of late I’ve seen some more promising offerings of this sort of thing from Canon and Olympus.

Here’s a video I shot using the underwater mode on an Olympus Mirrorless camera, an EM5:

Shooting in the RAW

Probably the very best way to colour correct your pictures, even if you have the option of custom white balance, is if your camera will allow you to shoot RAW files.

Now if you are not sure, the chances are that your camera won’t, as the ability to shoot RAW will be something you will probably have looked at when buying a camera, and also the salesman will have made a big deal out of it, because it is a big deal. So you know what to ask for when you purchase your next camera.

RAW files are simply the actual data recorded at the sensor and are not processed into a jpeg file within the camera.
The means that you can have full control after you’ve taken your shots to process the pictures yourself, and really fine tune things like colour correction, white balance and even exposure to a lesser degree. This processing you would do within a program like Adobe Photoshop or Adobe Lightroom, and this is why things like RAW shooting are available to people with high end compact cameras or Mirrorless and DSLR shooters.

It’s nothing to be intimidated about and processing RAW files is a relatively easy task, and is also quite fun too. A bit like the modern equivalent of having a home darkroom, but without the dangerous chemicals and fumbling around in the dark!

This is an uncorrected RAW file taken on a Canon Compact camera, at around a 12m depth.

After colour correction within Adobe Lightroom, the RAW file has allowed me to completely restore the colours, but beware – this won’t work miracles, and at depths greater than 12m, it has less usefulness, and maybe using a strobe would be better.

Macro Photography in Available Light

Underwater macro or close up photography is often thought to be only practical if you use extra lighting of some kind. If you encounter subjects that are in good light like the Hawkfish below, then there is no reason as long as your shutter speeds and apertures of your camera will allow to shoot with what the sun is providing for you. This can often be simpler and produce more naturalistic results.

So keep an eye on what your camera is telling you, and if the camera shake warning is flashing then you may need to up your ISO’s to provide a suitable shutter speed to hand hold. On that note hand holding close up shots is more tricky than wide angle so you may need to pick (or force shutter speeds with a higher ISO) than you could get away with with a wider lens. I try and keep above 1/250 of a second if shooting like this.

This Lizard fish is about as close as you could expect to shoot successfully without a strobe. These guys are often in very shallow water, laying on bright well lit sand, so are a very suitable subject for available light macro photography.

Fish portraiture like this is perfectly achievable using available light, and allows you to capture the subject exactly as you see it. The things you need to watch out for are that your shutter speeds are sufficiently high enough to hand hold your camera set up, because in macro mode you may also be zoomed in slightly so any movements you make will be magnified. These two shots below were typical examples of pictures where I wanted to get the shot exactly as I was seeing it, and whilst the Crocodile Fish is only just qualified to be called a macro picture, everything I’ve said above applies.

Fish Portraits like the ones here shot using compact cameras and underwater white balance, or RAW files, is very possible in very bright light conditions.

Macro Photography is normally the preserve of someone shooting with strobes only, but as long as you are in good light Macro photography is possible.

Available light wreck shooting

A very popular subject for available light shooting is to shoot big expansive wreck photographs, and often shooting available light is the only way possible to light such a large object, because even with the most powerful strobes it would be nigh on impossible to completely illuminate a large subject like a wreck. Unless the light conditions are in your favour, and the wreck is positioned so that the sun is directly illuminating it, when you want to shoot it, then getting your colours correct will depend hugely on all these variables. Just one of the reasons why people often choose to turn their wreck photographs to black and white – this not only heightens the drama and mood but is often the only get out clause to avoid weird colours, because the conditions are not in your favour.

For the stern shot of the Thistlegorm, I have actually used a little bit of flash, but it has only slightly lightened the very closest part of the wreck, and lifted it a little. To all intents and purposes the shot is being mostly illuminated by the late afternoon sunlight.

So I will leave it up to you which you prefer, the straight shot or the black and white toned version below it:

A shot at the stern, where I have been lucky enough to have no other divers in the scene, which if you’ve been to the Thistlegorm, you’ll realise is rare indeed. This is with only a tiny amount of flash lighting up the very closest part of the wreck.

The black and white version of the stern shot of the Thistlegorm. It’s a matter of personal taste which one you prefer. Making black and white edits like this is a question I get asked a lot on our photo workshops.

The side on shot which is an unusual angle. I have given you the straight shot at the top with little or no editing, and then the more stylised black and white version below it:

This is a rather untraditional viewpoint of the Thistlegorm, taken sideways on at the bow. The picture is a little soft at the edges because of the wide aperture I have had to use to gain a sufficiently fast shutter speed to hold the camera steady.

Because of the wide aperture I used which has softened the edges somewhat, I decided to opt for a black and white edit which actually highlights the softer edges to try and give it a dated and otherworldly feel.

Another alternative is to come on a dedicated wreck photography week where we will often dive the same wreck many times throughout the day to raise the chances of good lighting. I spend a lot of time on these trips teaching people how to edit their pictures, with black and white editing particularly popular.

I hope you’ve enjoyed this series on available light shooting. If you’d like to ask me any questions or talk about our photo trips please drop me a line at

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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'.

Marine Life & Conservation

Exhibition: Protecting UNESCO Marine World Heritage through scientific research



From now until 30 October, the photo exhibition “Protecting UNESCO Marine World Heritage through scientific research” features 21 photographs at UNESCO Headquarters, Paris, as well as a digital edition.

Exceptional photographs highlight how innovative marine experts and scientists take the pulse of the ocean by exploring ecosystems, studying the movement of species, or revealing the hidden biodiversity of coral reefs. Scientific discoveries are more important than ever for the protection and sustainable conservation of our Marine World Heritage. This memorable exhibition comes ahead of the launch, in 2021, of the United Nations Decade of Ocean Science for Sustainable Development (“Ocean Decade”). The exhibition was jointly developed by UNESCO and the Principality of Monaco.

The 50 marine sites inscribed on the UNESCO World Heritage List, distributed across 37 countries, include a wide variety of habitats as well as rare marine life still largely unknown. Renowned for their unmatched beauty and emblematic biodiversity, these exceptional ecosystems play a leading role in the field of marine conservation. Through scientific field research and innovation, concrete actions to foster global preservation of the ocean are being implemented locally in these unique natural sites all over the world. They are true symbols of hope in a changing ocean.

Since 2017, the Principality of Monaco supports UNESCO to strengthen conservation and scientific understanding of the marine sites inscribed on the World Heritage List. This strategic partnership allows local management teams to benefit from the results obtained during the scientific missions of Monaco Explorations. The partnership also draws international attention to the conservation challenges facing the world’s most iconic ocean sites.

The exhibition invites viewers to take a passionate dive into the heart of the scientific missions led by Monaco Explorations in four marine World Heritage sites: Tubbataha Reefs Natural Park (Philippines), Malpelo Fauna and Flora Sanctuary (Colombia), Rock Islands Southern Lagoon (Palau), and the Lagoons of New Caledonia: Reef Diversity and Associated Ecosystems (France). It is also an opportunity to discover the work of a megafauna census; the study of the resilience of coral reefs and their adaptation in a changing climate; the exploration of the deep sea; and the monitoring of large marine predators through satellite data.

To visit the Digital Exhibition click here.

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Blue O Two announce the winners of DIVING LIFE Photography Competition



Blue O Two has announced the winners of their first amateur photography competition.  Entitled, DIVING LIFE, it had two categories: Underwater Photograph and Divers Lifestyle Photograph.  An overall winner was chosen from the two category winners and received the title: Diving Life Photographer of the Year 2020.  A calendar of the winning photographs is being produced and will be released for sale in the coming weeks. 

The team at Blue O Two were blown away by the response they had to the competition.  Entries came in from all over the world.  When they launched the competition, it was in part to lift the mood, spreading some joy among the Covid gloom.  The idea was to remind divers of wonderful past experiences and to dream of those they will have again.  Given the engagement from the global diving world and the standard of entries, the competition will now be annual.

Ivan Donoghue: There’s always one!

From the hundreds of entries, there was an initial shortlist of 50 images.  Each category had 2nd and 3rd places, alongside several runners up.  The overall winner has a Liveaboard trip to Egypt to look forward to, the title of ‘Diving Life Photographer of the Year 2020’ and an assortment of Blue O Two goodies. Both category winners will receive a copy of their photograph printed on canvas, a copy of the Diving Life Calendar 2020 and a selection of branded goodies. The runners up will have their image printed in the calendar and will receive a free copy.

Dr Alex Mustard MBE, who judged the competition, said the following: “This collection of fabulous winning images reminds me why I love being underwater and going on diving adventures. It was a tough contest to judge because it was more than just an underwater picture competition, Diving Life was created for amateur photographers to share their love of diving, with pictures taken both above and below the surface. When judging I gave equal weighting to the feeling captured in the images and their photographic technique and quality. For me, all the winners capture the highs of dive trips: encounters with incredible creatures both big and small, amazing moments underwater, spending time with friends, visiting incredible places and having fun.

Overall Winner: Masayuki Agawa with Hammer River

Special congratulations to the overall winner Masayuki Agawa from the USA, whose white knuckle image Hammer River will immediately transport anyone who has dived with hammerheads in the East Pacific back on those dives. The hammerhead schools are regularly most spectacular when the currents are fierce and the advice from the National Park guides is to stay low and hold onto the rocks, as anyone floating up in the water will spook the sharks. The picture places me right in the moment of this unforgettable experience as the hammerhead school magically materialises from the blue.”

The winner, Masayuki Agawa, said: “I am truly honored. Thank you very much for the compliments! It was hard to contain my excitement when I saw the announcement.  Thank you again for such opportunity and motivation. I will continue to strive for better photos in the future!”

To see the winning images and learn more about the competition click here.

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