Canon SD790 - PowerShot IS Digital ELPH Camera Uživatelský manuál stáhnout pdf

1 Introduction

On Sept. 2, 2009, a group of MIT students launched a balloon with a digital

camera into near space to take photographs of the earth (http://

space.1337arts.com). Five hours later, the camera returned from the flight,

having reached a height of 17.5 miles. All of the equipment was put to-

gether from off-the-shelf components (balloon, parachute, camera, GPS

tracker, etc.) and did not cost more than $150. Several missions similar to

this one had been completed before by other groups, but not at such a low

cost. For example, in 2008, an Italian group launched a digital camera into

space taking both photos and videos (http://www.francescobonomi.it/

ICBNN).

Both projects used Canon compact cameras for taking pictures. The MIT

students used a Canon A470, the Italian group a Digital Elph SD 1100 IS (Ixus

80 IS). In addition, both cameras were equipped with the CHDK, the Canon

Hack Development Kit. Despite its intimidating name, the CHDK is a ready-

to-run piece of software that can be installed on the camera’s memory card

and that enhances the camera with many new features. In the above-

mentioned space missions, the CHDK determined when to begin shooting

and in what intervals. In the case of the SD 1100 IS, the CHDK also ran a

shutter priority exposure program that the camera normally does not offer.

These are only a few tricks that the CHDK has up its sleeve. RAW shoot-

ing, live histograms, remote control, ultrashort and ultralong exposure

times, time-lapsing, motion detection, exposure and focus bracketing,

camera automation with scripts, and, and, and… More than a few high-

priced DSLRs would be proud to have such features. No wonder the CHDK

has hit the columns of nearly every photography-related magazine and

e-zine around the world.

Today, the CHDK can be regarded as a mature product that is robust

enough for the most demanding missions. It is available in many languages.

The documentation, too, such as manuals and tutorials, is rapidly improving.

There is a lively online community at http://chdk.setepontos.com/.

How this book is organized

We start with an introduction to Canon compact cameras and the operat-

ing systems they use. An introduction to the CHDK—what it is and why

you should use it—completes chapter 2.

1 2 3 4 5 6 7 8 9

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Strany 1 - 1 Introduction

11 IntroductionOn Sept. 2, 2009, a group of MIT students launched a balloon with a digital camera into near space to take photographs of the earth

Strany 2 - Acknowledgments

2 CHAPTER 1 Introduction Chapter 3 deals with how to install the CHDK—both utility-augmented installation on a PC and manual installation by utilizin

Strany 3 - 2 Cameras and Operating

2.1 Camera hardware 32 Cameras and Operating SystemsBefore turning to the virtues of the CHDK, let’s first have a look at some of the platforms the

Strany 4

4 CHAPTER 2 Cameras and Operating Systems For the smaller models—especially the Digital Elph (Ixus) series—the shutter mechanism consists of a simple

Strany 5 - 2.3.1 History

2.2 Processors and operating systems 52.2 Processors and operating systemsSince 2002, Canon has used the DIGIC processor in all of its digital cam

Strany 6 - 2.3.2 How it works

6 CHAPTER 2 Cameras and Operating Systems The first build of the CHDK enabled the camera (an A610) to deliver RAW 10-bit sensor data in combination

Strany 7 - RAW images

2.3 The CHDK: What it is and how it works 7The CHDK adds an additional task that manages the CHDK functions. In addition, the CHDK needs hooks in th

Strany 8 - Better information

8 CHAPTER 2 Cameras and Operating Systems Recent versions of the CHDK are able to deliver RAW data in the popular DNG format, created by Adobe as a

Strany 9 - Remote control

2.3 The CHDK: What it is and how it works 9 display of zebra areas (over- and underexposed image areas masked with a zebra pattern) that allow you t

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Canon SD790 - PowerShot IS Digital ELPH Camera Uživatelský manuál

Procházejte online nebo si stáhněte Uživatelský manuál pro Software Canon SD790 - PowerShot IS Digital ELPH Camera. Sample Pages Uživatelská příručka

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