Ideally, a hydrogen fuel-cell vehicle has no environmental impact. Energy is produced by combining hydrogen with oxygen pulled from the atmosphere, and the tailpipe emission is water. The hydrogen fuel could come from a number of sources (Iceland recently started pulling it out of the ground).
A fast shutter speed such as 1/400th of a second will produce a series of crisp frames that have a choppy look when played back. A slow shutter speed such as 1/30th of a second, on the other hand, will produce a series of slightly blurred frames that have a smoother look when played back.
When taking photos of fast moving subjects, itâs important to use the correct camera settings in order to obtain fast shutter speeds. Many photographers use Shutter Priority mode when photographing sports. However, some compact digital cameras donât have semi-automatic or manual modes. If yours doesnât, use Sports, Kids and Pets, or Fast Shutter Speed mode. Obtaining a fast shutter speed with a compact digital camera can be especially difficult when light is low.