Camera Underwater

Action Camera Underwater Video Basics shows how to capture fantastic video and turn it into engaging sequences. The book focuses on small action cameras – the format which includes devices made by GoPro, SeaLife and Paralenz – all of which have more depth to them than one might first imagine. Award-winning underwater cameraman Jeff Goodman shows how versatile they can be and how to get the best out of them. Every one of the 200+ images in the book was shot with an action camera. The book looks at important camera features and cuts through the dizzying array of equipment choices. Homing in on what is useful for underwater videoing, Jeff then provides the vital background knowledge key to achieving great results, time after time, whatever device you use: How to avoid the typical mistakes made by many budding underwater filmmakers. Capture better shots and turn them into engaging sequences. An introduction to the editing process – simple techniques to make the best videos. Jeff also explains how to use action cameras to take better underwater stills, both in the water and later from the video which has been shot. The book concludes with two exercises that put the theory into practice. Although technology moves on at a pace, some things will always remain true. Nowadays shooting exclusively with tiny action cameras, Jeff shares a lifetime of essential underwater video know-how in one handy book.

Simplifying the seemingly difficult and expensive art of underwater photography, this accessible investigation outlines the four elements of success: focus, exposure, composition, and subject. Beginning with an overview of necessary diving skills, this survey reviews these four categories in detail, depicting how to obtain superior results even without the latest and greatest equipment. Maintenance and first-aid tactics are presented as well, reducing the chance of disappointing malfunctions during a dive. Also covered is the importance of developing a photography plan beforehand—both for the safety of the divers and the protection of the underwater environment. Concluding with post-shoot techniques for choosing the best frames, cropping photos for printing, and the top methods of presentation, this examination demonstrates how underwater images can be used to share the world of diving while promoting important conservation efforts.

Still photography and videography techniques, including choosing the best equipment, using equipment to its full potential, and solving technical challenges. Full-color diagrams, tables, and charts provide easy reference for exposure settings and composition.

If you're a beginner photographer, this book can save you hundreds of dollars. If you're a seasoned pro, it can save you thousands. With access to over 16 HOURS of online video, this book helps you choose the best equipment for your budget and style of photography. In this book, award-winning author and photographer Tony Northrup explains explains what all your camera, flash, lens, and tripod features do, as well as which are worth paying for and which you can simply skip. Tony provides information specific to your style of photography, whether you're a casual photographer or you're serious about portraits, landscapes, sports, wildlife, weddings, or even macro. For the casual reader, Tony provides quick recommendations to allow you to get the best gear for your budget, without spending days researching. If you love camera gear, you'll be able to dive into 200 pages of detailed information covering Nikon, Canon, Sony, Micro Four-Thirds, Olympus, Samsung, Leica, Mamiya, Hasselblad, Fuji, Pentax, Tamron, Sigma, Yongnuo, PocketWizard, Phottix, Pixel King, and many other manufacturers. Camera technology changes fast, and this book keeps up. Tony updates this book several times per year, and buying the book gives you a lifetime subscription to the updated content. You'll always have an up-to-date reference on camera gear right at your fingertips. Here are just some of the topics covered in the book: What should my first camera be?Which lens should I buy?Should I buy Canon, Nikon, or Sony?Is a mirrorless camera or a DSLR better for me?Do I need a full frame camera?Is it safe to buy generic lenses and flashes?What's the best landscape photography gear?Which portrait lens and flash should I buy?What gear do I need to photograph a wedding?How can I get great wildlife shots on a budget?Which sports photography equipment should I purchase?Should I buy zooms or primes?Is image stabilization worth the extra cost?Which type of tripod should I buy?Which wireless flash system is the best for my budget?How can I save money by buying used?What kind of computer should I get for photo editing?What studio lighting equipment should I buy?When you buy this book, you'll be able to immediately read the book online. You'll also be able to download it in PDF, .mobi, and .epub formats--every popular format for your computer, tablet, smartphone, or eReader!

This work proposes strategies and solutions to tackle the problem of building photo-mosaics of very large underwater optical surveys, presenting contributions to the image preprocessing, enhancing and blending steps, and resulting in an improved visual quality of the final photo-mosaic. The text opens with a comprehensive review of mosaicing and blending techniques, before proposing an approach for large scale underwater image mosaicing and blending. In the image preprocessing step, a depth dependent illumination compensation function is used to solve the non-uniform illumination appearance due to light attenuation. For image enhancement, the image contrast variability due to different acquisition altitudes is compensated using an adaptive contrast enhancement based on an image quality reference selected through a total variation criterion. In the blending step, a graph-cut strategy operating in the image gradient domain over the overlapping regions is suggested. Next, an out-of-core blending strategy for very large scale photo-mosaics is presented and tested on real data. Finally, the performance of the approach is evaluated and compared with other approaches.

Using the digital darkroom to perfect underwater images, this guide is loaded with tips on how to finesse, fine-tune, retouch, and enhance underwater film scans and digital images with Adobe Photoshop. This comprehensive look at the required setup for a digital darkroom outlines the necessary hardware, monitor calibration, and room lighting, in addition to providing a survey of the top editing tools and descriptions of the most tried-and-true correction techniques. Step-by-step instructions explain how to group underwater images for editing; approach corrections for images that require a multi-step enhancement process; and choose the right output options for printed images, video, slide shows, and Web viewing.