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Marin Headlands Tunnel [HDR] | by T bias
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Marin Headlands Tunnel [HDR]

This is a composite of 9 photos:

 

ISO 100, 50mm, ƒ/22

 

Exposure times:

105s

75s

45s

20s

15s

6s

4s

&

30s at ƒ/9

30s at ƒ/6.3

 

The last two were taken purely to capture the over exposed portions in order to get good bracketing. Usually I would have done them at ƒ/22, but my friend was waiting in the car and doing the rather long exposures at that stop would have gone past the realm of politeness. Thankfully, the two over exposed images at lower ƒ stops added a lot without diminishing the final product..

 

Note: I was previously set up in the center of the tunnel, but the cops told me that pedestrians are not allowed within the exceptionally long tunnel.

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Taken on August 27, 2011