high dynamic range

21
High Dynamic Range

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Post on 20-May-2015

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A quick overview of what HDR actually is

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Page 1: High Dynamic Range

High Dynamic Range

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The human eye can see about 12 different exposures of light:

What is HDR?

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But a camera only sees about 5 exposures:

What is HDR?

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These 5 exposures are set by you (or the camera’s Auto mode!):

What is HDR?

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These 5 exposures are set by you (or the camera’s Auto mode!):

What is HDR?

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You can’t pick up the extreme detail in the shadows and highlights:

The Problem

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You can’t pick up the extreme detail in the shadows and highlights:

The Problem

Too Far Apart!

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Take three photos at different exposures:

The Solution

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Take two or more photos at different exposures:

The Solution

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Take two or more photos at different exposures:

The Solution

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Take two or more photos at different exposures:

The Solution

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Take two or more photos at different exposures:

The Solution

All 12 ‘Exposures’ Covered

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Take two or more photos at different exposures:

The Solution

There is a way to get the same result using a single RAW photo – but that’s for

another day

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Then Photoshop them together

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Then Photoshop them together

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Dead Easy!

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BUT THERE’S A PROBLEM…

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True HDR needs to use 281 trillion colours (16 bit)

To discourage professional photographers using PSE, Adobe limits it to a mere 16 million colours (8 bit)!

But luckily it can be faked…

Photoshop Elements GEEKALERT!

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There’s free (and paid for) software that will do the job for you:

HDR Photomatix HDR Fusion …and others

…or use layers and blending modes in Photoshop…

Free HDR Software