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Getting into Photogrammetry – debut blog from Alex Tasker

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Every cloud has a silver lining. In early March our skipper called off the weekend’s diving in Loch Fyne. A shame – but I made a couple of phone calls and seized the opportunity to attend IANTD’s first, two-day Photogrammetry course instead. I’ve been experimenting with this over the last year and increasingly feeling that I needed some help!

Tim Clements, who prepared the course, was there to lead it at Vobster Quay. Although there was quite a mix of students with a variety of camera gear, everyone was able to create 3D models from their own image data that they had captured during the underwater exercises which were part of the course. There was an emphasis on teamwork, safety and dive management, as well as on the photographic tasks, and all the students got useful feedback on their in-water abilities over the weekend.

I was paired with David, an experienced technical instructor. While this was my first visit to Vobster he must have dived there hundreds of times – he’s enthusiastic about the place and I must say I found it well set up and hassle-free. We gelled easily and I really enjoyed developing the use of “angel lighting” over the three dives we did together. On dive #2 I had an issue with my primary camera and was relieved to have the Paralenz on top of my rig – I was able to extract frames from the video to produce this model: https://skfb.ly/6HYJJ (that’s the same concrete block we were playing with topside the previous day!)

Back in the classroom, Simon Brown of Deep3D provided expert knowledge on photography and image processing. I was delighted to renew my acquaintance with Simon, who’s a particularly accomplished photogrammeter (if that’s the word) and has modelled numerous interesting underwater sites. I came away with pages of notes to digest on the photography itself and subsequent workflow.

We were also treated to some great 3D VR demos from Marcus Blatchford, illustrating some of the potential for our 3D models. He lent some much-needed computing power too, putting together this model from the image data I captured on dive #3: https://skfb.ly/6HTHX

We all deemed the course a real success; I’m certainly hoping to share some far more interesting models in the near future…

Alex was a hardy teenager when he first dived in the North Sea in a borrowed wetsuit but only really got into diving with his partner in 2009. They’ve ticked off a few bucket-list destinations but remain enthusiastic about all that UK diving has to offer. Alex only learned to use a camera properly since taking one underwater and now rarely dives without it. He’s recently expanded his interest in photographing shipwrecks into some experiments with photogrammetry, with ambitions to produce some archaeologically useful models.

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Introducing the all-new PADI Dive Guides: connecting divers worldwide with local expertise

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The new PADI Dive Guides™ make it easier than ever for divers to discover, explore and plan their next adventure by providing the tools needed to research and book dive experiences or training anywhere in the world. PADI Dive Guides are the go-to resource whether planning a local dive or seeking inspiration and information about far-off destinations.

“Dive destination information has been integral to padi.com for years,” says Lisa Nicklin, Vice President of Consumer Marketing for PADI Worldwide. “This next evolution provides more detailed guides that will continue to grow in global coverage and bring unprecedented value to PADI Members and divers alike. Leveraging new system capabilities, the guides combine PADI’s global expertise with the immense local knowledge of PADI Members around the world. PADI Dive Guides enable divers to plan and book adventures near home or wherever their future travels may take them – all through one convenient platform.” 

Image: Al Hornsby

Now available at padi.com/exploration, the collection of thousands of guides offers marine life calendars, seasonal weather data and travel information. Users can learn about dive opportunities by continent and country, or drill down to specific dive destinations and dive sites. They will find a mosaic of dive sites to explore in each location with insight provided by local experts, as well as dive site reviews from fellow explorers. Users can easily contact PADI operators and book dives, snorkel excursions, holidays and courses through the integrated PADI Adventures™ platform.

Start exploring and planning your next adventure at padi.com/exploration.

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Dive Training Blogs

Why Every Diver Should Be A Rescue Diver (Watch Video)

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Why Every Diver Should Be A Rescue Diver! I’ve got three reasons why every diver should take a Rescue Diver course. The world would be a better place!

Rescue Diver is mine – and a lot of my Instructor buddies’ – favorite course to teach. A well-run Rescue Diver course should be heavily practical and feature realistic scenarios. It expands your vision to include situational awareness and give you the knowledge and skills to react should an accident occur.

Think resuscitation is hard on land? Wait until you’re given rescue breaths in water whilst towing the victim! It’s a fantastic confidence booster, especially for divers who are more naturally anxious or nervous.

Thanks for watching! D.S.D.O James


Subscribe here: http://bit.ly/DiversReady

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Competitions

Explore the amazing triangle of Red Sea Reefs - The Brothers, Daedalus and Elphinstone on board the brand new liveaboard Big Blue.  With an option to add on a week at Roots Red Sea before or after. 

Strong currents and deep blue water are the catalysts that bring the pelagic species flocking to these reefs. The reefs themselves provide exquisite homes for a multitude of marine life.  The wafting soft corals are adorned with thousands of colourful fish. The gorgonian fans and hard corals provide magnificent back drops, all being patrolled by the reef’s predatory species.

£1475 per person based on double occupancy.  Soft all inclusive board basis, buffet meals with snacks, tea and coffee always available.  Add a week on at Roots Red Sea Resort before or after the liveaboard for just £725pp.  Flights and transfers are included.  See our brochure linked above for the full itinerary.

This trip will be hosted by The Scuba Place.  Come Dive with Us!

Call 020 3515 9955 or email john@thescubaplace.co.uk

www.thescubaplace.co.uk

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