Trick Shots: Low LightelptDiscover how high ISOs can improve the quality of your photographs
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By Ibarionex R. Perello, Photography By Ibarionex R. Perello
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Low-Light Shooting
Im often hired to photograph live performances of musicians, dancers and actors. Its challenging work, particularly because I dont have the benefit of controlling the lighting. Prohibited in the use of flash, I have to make the most of the existing stage light, which wasnt designed with the photographer in mind.
Stage lighting, even at its best, doesnt provide enough light to shoot at low ISOs, such as 100 or 200. Such a low ISO may result in shutter speeds of 1⁄15 sec. or slower, even when using zoom lenses with a fast maximum aperture of /2.8. Not only will shooting at such low ISOs result in soft images due to camera motion, but the subjects also will be blurred because the shutter speed is insufficient to freeze their movement.
The choice to increase ISO to 800, 1600 and higher is an easy one for me. I need to get the shot, and Id prefer to have a noisy image thats sharp than a noiseless image thats soft. The former can be fixed later. The latter results in yet another useless image.
All of the images illustrating this article were shot at an ISO of 800 or higher. The quality of the files was excellent, even before using a noise-reduction application. This is a testament to the camera makers who have made great strides in both the design of their sensors and the image-processing software incorporated into their cameras.
In many of these images, even an ISO of 1600 didnt offer me as fast a shutter speed as I would have liked, particularly when using a fast 70-200mm lens. I was sometimes forced to shoot at 1⁄125 sec., which was viable only because of the lens image-stabilization feature. But even though the lens IS technology could counter problems with camera motion, it couldnt help me with the movement of the performers.
It was dependent on me to capture moments when a telling gesture was at its peak. Its a challenge, but one thats made easier by the fact that my camera was set to perform optimally under difficult lighting conditions.
By increasing the cameras ISO, using the fastest shutter speed possible and carefully handholding my camera, I could get consistently sharp results. Though there were certainly images that were soft, I succeeded in producing a greater percentage of photographs that met my criteria for quality.
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