Den engelske luftfotograf Charles Sims beretter her om sine oplevelser under fotograferingsopgaver hovedsagelig taget fra luften i forb indelse med hændelser inden for flyvningens verden

The fascinating history and unnerving future of high-tech aerial surveillance, from its secret military origins to its growing use on American citizens Eyes in the Sky is the authoritative account of how the Pentagon secretly developed a godlike surveillance system for monitoring America's enemies overseas, and how it is now being used to watch us in our own backyards. Whereas a regular aerial camera can only capture a small patch of ground at any given time, this system—and its most powerful iteration, Gorgon Stare—allow operators to track thousands of moving targets at once, both forwards and backwards in time, across whole city-sized areas. When fused with big-data analysis techniques, this network can be used to watch everything simultaneously, and perhaps even predict attacks before they happen. In battle, Gorgon Stare and other systems like it have saved countless lives, but when this technology is deployed over American cities—as it already has been, extensively and largely in secret—it has the potential to become the most nightmarishly powerful visual surveillance system ever built. While it may well solve serious crimes and even help ease the traffic along your morning commute, it could also enable far more sinister and dangerous intrusions into our lives. This is closed-circuit television on steroids. Facebook in the heavens. Drawing on extensive access within the Pentagon and in the companies and government labs that developed these devices, Eyes in the Sky reveals how a top-secret team of mad scientists brought Gorgon Stare into existence, how it has come to pose an unprecedented threat to our privacy and freedom, and how we might still capitalize on its great promise while avoiding its many perils.

The book that taught thousands of people about astrophotography has been completely revised and updated in this second edition. It covers everything you need to know to capture stunning images of deep-sky objects with a DSLR or CCD camera: The fundamental concepts of imaging and their impact on the final image How to pick a telescope and camera How to get set up and take the images Where and when to find the best objects in the night sky How to process images using Adobe Photoshop(R) and PixInsight(R) Start-to-finish examples of image processing Full-color with over 300 illustrations.

The book describes — How to shoot and process still image “nightscapes” – images of landscapes taken at night by the light of the Moon or stars … and … How to shoot and assemble time-lapse movies of the stars and Milky Way turning above Earthly scenes, all using DSLR cameras. The 400-page multi-touch book includes — 50 embedded HD videos (no internet connection required) demonstrating time-lapse techniques. 60 multi-page tutorials with step-by-step instructions of how to use software: Adobe Bridge, Adobe Camera Raw, Photoshop, Lightroom, LRTimelapse, Advanced Stacker Actions, StarStaX, Panolapse, Sequence, GBTimelapse, and more. Numerous Photo 101 sections explaining the basic concepts of photography and video production (f-stops, ISOs, file types, aspect ratios, frame rates, compression, etc.). Numerous Astronomy 101 sections explaining the basics of how the sky works (how the sky moves, where the Moon can be found, when the Milky Way can be seen, when and where to see auroras). Reviews of gear – I don’t just mention that specialized gear exists, I illustrate in detail how to use popular units such as the Time-Lapse+, Michron, and TriggerTrap intervalometers, and the All-View mount, Radian, Mindarin Astro, eMotimo, and Dynamic Perception motion-control units, with comments on what’s good – and not so good – to use. You’ll learn — What are the best cameras and lenses to buy (cropped vs. full-frame, Canon vs. Nikon, manual vs. automatic lenses, zooms vs. primes). How to set your cameras and lenses for maximum detail and minimum noise (following the mantra of “exposing to the right” and using dark frames). How to shoot auroras, conjunctions, satellites, comets, and meteor showers. How to shoot nightscapes lit only by moonlit, and how to determine where the Moon will be to plan a shoot. How to shoot & stitch panoramas of the night sky and Milky Way, using Photoshop and PTGui software. How to shoot tracked long exposures of the Milky Way using camera trackers such as the iOptron Star Tracker and Sky-Watcher Star Adventurer. How to develop Raw files, the essential first step to great images and movies. How to process nightscape stills using techniques such as compositing multiple exposures, masking ground and sky, and using non-destructive adjustment layers and smart filters. How to shoot and stack star trail images made of hundreds of frames. How to assemble time-lapse movies from those same hundreds of frames. How to plan a time-lapse shoot and calculate the best balance of exposure time vs. frame count vs. length of shoot, and recommended apps to use. How to process hundreds of frames using Adobe Camera Raw, Bridge, Photoshop, and Lightroom. How to shoot and process advanced “Holy Grail” time-lapse transitions from day to night. How to shoot motion-control sequences using specialized dolly and pan/tilt devices. How to use time-lapse processing tools such as LRTimelapse, Panolapse, Sequence, and Advanced Stacker Actions. What can go wrong and how best to avoid problems in the field.

The touchstone for contemporary stargazers. This classic, groundbreaking guide has been the go-to field guide for both beginning and experienced amateur astronomers for nearly 30 years. The fourth edition brings Terence Dickinson and Alan Dyer's invaluable manual completely up-to-date. Setting a new standard for astronomy guides, it will serve as the touchstone for the next generation of stargazers as well as longtime devotees. Technology and astronomical understanding are evolving at a breathtaking clip, and to reflect the latest information about observing techniques and equipment, this massively revised and expanded edition has been completely rebuilt (an additional 48 pages brings the page count to 416). Illustrated throughout with all-new photographs and star charts, this edition boasts a refreshed design and features five brand-new chapters, including three essential essays on binocular, telescope and Moon tours by renowned astronomy writer Ken Hewitt-White. With new content on naked-eye sky sights, LED lighting technology, WiFi-enabled telescopes and the latest advances in binoculars, telescopes and other astronomical gear, the fourth edition of The Backyard Astronomer's Guide is sure to become an indispensable reference for all levels of stargazers. New techniques for observing the Sun, the Moon and solar and lunar eclipses are an especially timely addition, given the upcoming solar eclipses in 2023 and 2024. Rounding out these impressive offerings are new sections on dark sky reserves, astro-tourism, modern astrophotography and cellphone astrophotography, making this book an enduring must-have guide for anyone looking to improve his or her astronomical viewing experience. The Backyard Astronomer's Guide also features a foreword by Dr. Sara Seager, a Canadian-American astrophysicist and planetary scientist at the Massachusetts Institute of Technology and an internationally recognized expert in the search for exoplanets.