Digital SLR astrophotography /
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| Format: | eBook |
| Language: | English |
| Published: |
Cambridge, United Kingdom ; New York, NY :
Cambridge University Press,
2018.
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| Edition: | Second edition. |
| Series: | Practical amateur astronomy.
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| Subjects: | |
| Online Access: | Connect to the full text of this electronic book |
Table of Contents:
- Cover; Half Title; Title page; Imprints page; Dedication; Contents; Preface; Part I DSLRs for Astrophotography; 1 Welcome to DSLR Astrophotography; 1.1 What is a DSLR?; 1.1.1 Digital Single-Lens Reflex Cameras; 1.1.2 DSLRs without Mirrors: MILCs; 1.2 DSLRs versus Other Cameras; 1.2.1 Dedicated Astrocameras; 1.2.2 Fixed-Lens Digital Cameras?; 1.2.3 What about Film?; 1.3 Choosing a DSLR; 1.3.1 Canon vs. Nikon vs. Others; 1.3.2 Camera Features; 1.3.3 Shopping Strategy; 1.4 Choosing Software; 1.5 Choosing the Computer; 1.6 Choosing the Telescope or Lens; 1.6.1 The Aperture Counterrevolution
- 1.6.2 The 500-mm Optimum1.6.3 Ease of Use; 1.7 Choosing the Mount; 1.8 The Craft of Astrophotography; 1.8.1 Building your Skill and Judging your Achievements; 1.8.2 Pushing Limits or Staying within Them; 1.8.3 Testing as a Means or an End; 1.8.4 Philosophical and Ethical Issues; 1.8.5 Amateur or Professional?; 2 Digital Image Technology; 2.1 What is a Digital Image?; 2.1.1 Bit Depth; 2.1.2 Linear or Gamma-corrected?; 2.1.3 Color Encoding; 2.1.4 The Alpha Channel; 2.1.5 Frames; 2.2 File Formats; 2.2.1 File Size; 2.2.2 Compression; 2.2.3 Raw Files; 2.2.4 dcraw and Adobe DNG; 2.2.5 JPEG
- 2.2.6 TIFF2.2.7 PNG; 2.2.8 FITS; 2.2.9 XISF; 2.3 Color Imaging in Detail; 2.3.1 The Bayer Matrix (CFA); 2.3.2 Low-pass Filtering; 2.3.3 Nebulae are Blue or Pink, not Red; 2.3.4 Color Balance (White Balance); 2.3.5 Gamut; 2.4 Image Size and Resizing; 2.4.1 Dots per Inch; 2.4.2 Resampling; 2.4.3 Binning; 2.4.4 The Drizzle Algorithm; 2.5 Histograms, Brightness, and Contrast; 2.5.1 Histograms; 2.5.2 Histogram Equalization; 2.5.3 Curve Shape; 2.5.4 Gamma Correction in Detail; 2.6 Sharpening; 2.6.1 Edge Enhancement; 2.6.2 Unsharp Masking; 2.6.3 Spatial Frequency and Wavelet Transforms
- 2.6.4 Multiscale Processing2.6.5 Deconvolution; 3 DSLR Operation; 3.1 Taking a Picture Manually; 3.1.1 Shutter Speed and Aperture; 3.1.2 Manual Focusing; 3.1.3 ISO Speed; 3.1.4 Do You Want an Automatic Dark Frame?; 3.2 Menu Settings; 3.2.1 Things to Set Once and Leave Alone; 3.2.2 Settings for an Astrophotography Session; 3.3 How to See that Tiny Screen; 3.4 More Features of the Camera Body; 3.4.1 The Eyepiece Diopter; 3.4.2 The Strap and Eyepiece Cover; 3.4.3 Limiting Light Emission from the Camera; 3.5 Tripping the Shutter without Shaking the Telescope; 3.5.1 Self-timers and Remote Controls
- 3.5.2 Mirror Lock and Prefire3.5.3 Electronic First-curtain Shutter (EFCS); 3.5.4 Other Tricks; 3.5.5 Vibration-reducing Lenses; 3.6 Focusing; 3.6.1 Magnified Preview on the Screen; 3.6.2 Stars and Spikes; 3.6.3 Computer Focusing; 3.6.4 Focusing Telescopes with Moving Mirrors; 3.7 Other Image Quality Issues; 3.7.1 Grain; 3.7.2 Star Eaters; 3.7.3 Dust on the Sensor; 3.8 The Camera as Your Logbook; 4 Five Simple Projects; 4.1 Telephoto Moon; 4.2 Afocal Moon; 4.3 Stretching
- The Processing Technique to Learn Now; 4.4 Stars from a Fixed Tripod; 4.5 Nightscapes; 4.6 Piggybacking