rease your ISO to say 800, to take the image at 1/8th of a second. However, the trade off is that by increasing your ISO number, you increase your camera's sensitivity to the light and could end up with a whited out, or over exposed image. You know, when people's skin looks like a ghost! It's a trade off, to capture the moving object in focus, in the best light conditions.
Here is a cheat sheet for you to help with different light situations you may shoot in.
I set up this photo of the Wintry roses at 4.30pm on a dreary December day. I used a tripod and as I lost the light I snapped the same image using different ISO settings to show you the impact of increasing your ISO number.
FIRST ISO 100 - The first has very limited noise in the background, the centre of the pink rose is crisp.
SECOND ISO 1600 - To compensate for the fading natural light I increased the ISO but the orange roses become more grainy, although the image is still sharp enough to print.
THIRD ISO 25600 - Even at the highest possible setting on my camera the grain engulfs the image. Definition and detail is lost and the picture appears fuzzy and unusable even online at low res.
It's an extreme example but try setting up your own mini shoot at dusk and see how your settings affect the picture quality. Remember, what may look sharp on your display screen may look quite grainy on your computer screen.
Photography is all about balance. It's about balancing the three principles that effect exposure. Aperture, Shutter Speed and ISO.
I like to think of the three, like the three legs of a tripod. So if you change one you have to adjust the others to balance each other out.
The best thing to do is play! Play and practise and challenge yourself.
I will be shooting a recipe book this Summer and have been taking myself off for an hour here and there to practise in low light conditions and playing with different lights.
Improving your photography is a never ending process. So go and get snapping and enjoy seeing your pictures improve.
Next up is composition and we can start playing with props!