News
Duxy’s Underwater Photography Blog: Available Light, Part 2
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?
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.
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.
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
Spooktacular Underwater Adventure: Oyster Diving’s First Halloween Scuba Party at Mercers Lake
Last Thursday, Oyster Diving transformed Mercers Lake into a hauntingly unforgettable underwater realm for their inaugural Halloween Scuba Party. Approximately 20 intrepid divers plunged into the darkness, weaving through a mesmerising scene of spectral decorations, glow sticks, and eerie underwater pumpkins.
After the thrilling night dive, participants gathered to feast on a ghoulish spread of pumpkin soup, chilli con carne, and decadent fudge brownies, perfect fuel for the frightful festivities.
With a resounding success, Oyster Diving is excited to announce plans for this event to become an annual tradition. Next year, look forward to a fully licensed bar and live music, promising an even spookier celebration under the moonlit waters.
Join us next Halloween for an experience that promises to be a haunting delight!
Find out more about Oyster Diving at oysterdiving.com.
Marine Life & Conservation
Shark Trust launches Oceanic 31 Shark Art Auction
After a two-year tour of UK art galleries, community spaces and aquariums, the Shark Trust’s acclaimed Oceanic31 exhibition takes its final bow at the Royal Geographical Society later this month. And the unique collection of artwork, depicting 31 species of oceanic sharks and rays, donated by 31 artists, is now open for bids from art lovers and shark enthusiasts. The online auction, launched today, will close on the 7th December at 8pm (BST). The money raised will support the Shark Trust Oceanics Programme.
People can now bid on 27 of the artworks by visiting this website:
https://superstars-auctions.com/sharktrustauction
It is a chance to own a beautiful piece of original art and to support the Shark Trust. The timing of the auction also means that these would make a very special Christmas gift for any shark-lover.
The diversity of pieces mirrors that of the sharks and rays they represent. You can bid on paintings, digital creations, sculptures, mixed media and more. You can pick your favourite artist or species of shark. Or you can select the perfect artwork to make a statement in your home or office. Whichever you choose, you will be supporting the work to protect these amazing animals.
One of the pieces of art has been selected to be auctioned live by Steve Backshall at the For the Love of Sharks event at the Royal Geographical Society in London on the 29th November. In addition to this, two further pieces will be raffled at this event, giving people a chance to win an incredible piece of shark art. For the Love of Sharks is the Shark Trust’s flagship evening. A night to celebrate sharks. Steve Backshall is the headline speaker at this event that will see other prominent shark advocates join him on stage.
Tickets for the event can be snapped up here:
https://thesharktrust.org.uk/Event/flos24
Those that would like to see the Oceanic 31 exhibition have one final chance. It is being displayed at the Pavilion at the Royal Geographic Society from 26th November until the 7th December. Entry is free.
Find out more here:
https://www.rgs.org/events/upcoming-events/oceanic-31
Paul Cox, Shark Trust CEO, Said “This exhibition has given us the opportunity to reach out to a new audience. And inspire more people with the wonderful sharks and rays on which our Big Shark Pledge campaign is based. We are immensely grateful to the 31 artists who have worked so hard to create these works.”
Bid for your favourite Oceanic 31 artwork here:
https://superstars-auctions.com/sharktrustauction
Banner Image: Smooth Hammerhead by Alicia Hayden
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