Wednesday, November 2, 2011

Seeing 2011 (#161)

For your consideration: the view from Serenity Point at the St. Francis Retreat Center, near midnight.

Gilroy, Morgan Hill and undoubtedly some ambient presence of San Jose make themselves known on the horizon.

A single exposure of 28 minutes and 7 seconds (I was trying for 30 minutes but was estimating all the way). There is an art to capturing star trails, which I have clearly not yet mastered; far better results are derived from taking a large series of relatively short exposures and blending them together. Ah but that requires much more discipline and precision.

The downside of of employing single, lengthy shots such as this one is the accumulation of significant color noise. Removing it also, unfortunately, eliminates many of the fainter, finer streaks in the darker areas. Thus, this version, while largely devoid of the ugly grain, is also lacking considerable trail paths present in the original raw capture.

Heaven knows: perhaps next time . . .



True North (Polaris over Hwy 156), #2215-7D

© 2011 James W. Murray, all rights reserved.

(click image for larger version)

Details: October 1, 2011; Canon 7D; f/11 @ 1687 sec; ±0 EV; ISO 250; Tokina 11-16mm f/2.8 @ 11mm

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Visit my full photographic repository at jwmurray.smugmug.com

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