4h 58m | Video: .MP4, 960×540, 30 fps(r) | Audio: AAC, 44100 Hz, 2ch | 2,04 Gb
Genre: eLearning | Language: English
In this course, photographer Ben Long describes the concepts and techniques behind high dynamic range (HDR) photography, a technique used to create images that have a wider range between the lightest and darkest areas of a scene than a digital camera can typically capture. The course begins with some background on dynamic range, on how camera sensors detect shadows, and on the kinds of subjects that benefit from HDR. Ben then describes and demonstrates several methods of generating HDR images, starting with single-shot HDR, which relies on masking to subtly enhance the dynamic range of a shot. Next, the course covers multi-exposure HDR, which involves shooting several photos of a scene, each at a different exposure, and then combining them using software tools. Ben demonstrates how to use Photoshop and the popular Photomatix software to process HDR images whose appearance ranges from subtle to surreal.
Topics include:
Understanding how the image sensor detects shadows
Capturing a broader dynamic range
Knowing when to use HDR
Finding good HDR subject matter
Using gradient masks to improve dynamic range
Merging in Photoshop and processing elsewhere
Dealing with ghosting
Reducing noise and correcting chromatic aberrations
Handling HDR images that seem flat
Combining HDR and LDR (low dynamic range)
Selective editing with HDR Efex Pro
Creating panoramic HDR images
Creating an HDR time lapse
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