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High dynamic range imagery

Astroimager Adam Block demonstrates how to use masks to blend a sharpened image with the original.
RELATED TOPICS: ASTROIMAGING
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In 1954, Charles Wyckoff had a problem. He needed to freeze atomic bomb explosions on film. The initial flash of light, however, would fog the exposure, which prevented the recording of anything else.

His solution was to combine images using high-speed cameras with film emulsions of differing sensitivities. He also delayed the initial exposure by a fraction of a second. This allowed him to capture the emerging brilliant fireball as well as the surrounding scene.

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