IS WILL NOT help you to shoot your kids playing hockey in an arena since IS does not allow more light into the sensor. It allows for you to shoot with a slower shutter speed and compensate your movement, it does not freeze the movement like a faster shutter speed would. If you are going to shoot low light and sports like basketball and hockey.. a f2.8 would be the ideal lens.
IS WILL help you when you are using a telephoto lens and don't use a tripod or monopod for your stability. The ideal shutter speed is 1/mm so if you are shooting at 300mm, then the ideal shutter speed is 1/300s. which sometime you won't be able to get without either opening up the aperture ( i believe the far end of these are F5.6) or bumping up your ISO. So with IS, you will be able to shoot at say 1/200 or 1/150 without needing to shoot at ISO 100000000....
I waited forever for Canon to come out with the 70-200 F4 IS... best decision ever.
|