Tuesday, January 19, 2010

Using ISO settings to your advantage…

I was wandering around an antique shop when I came across this stop light. I thought it would make a good photo, but the shop was way too dark for natural light photography. Not having a speed light flash with me, I compensated by cranking up the ISO from 200, the camera's normal setting, all the way up to 3200.

The ISO setting measures the sensitivity of the camera's image sensor to light. The higher the ISO, the more sensitive to light, and the less light you need to take photographs. The traditional trade-off for high ISO is noisy photos — the higher the ISO, the more digital noise in the photo — until now. I shot the traffic light photo with my year old Nikon D90 using an 18-70mm zoom lens. The aperture setting was f/4.5 at 1/5 of a second. The photo was processed in my digital darkroom using Adobe Lightroom and Photoshop

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