Photo_on_2012-01-03_at_17
Reputation: 628

How do you get an object in motion to be in focus when photographing it?

Is it all about shutter speed?
I took a pic of my cat jumping over some fish that is really funny, but my cat is blurry. For future reference I would be interested in figuring out how to get a non-blurry cat. ;)

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  • Qlandav2ex_small
    Reputation: 4209

    This depends a great deal on what capabilities your camera has for defined operation, but use these guidelines. This is written assuming you are using a digital camera.

    Set your camera so that it is prefocused for the distance you are going to be from your cat. Sometimes a focusing range can be selected ahead of time or you may need to focus an automatically focusing camera and hold the setting by keeping the shutter button halfway pressed while waiting for the desired action to occur.

    Use a shutter speed that is 1/125 of a second or faster - the faster the shutter speed the less distance your cat will be moving in that slice of time.
    Faster shutter speeds will mean that you will need more light available for proper exposure. You may be able to set sensitivity of the camera by selecting a higher ISO setting but this can also make the image more grainy and possibly introduce more 'noise' in the results.

    Using the electronic flash will ensure the camera is using a fast shutter speed. However, your results will be affected by the possible reflections and shadows created by the bright light. Flash can also flatten the image into a more two dimensional appearance because other light sources are not as prominent to give depth to the objects in the field of view. Using the flash to stop action and having bright available light may give you the best results

    Lastly, practice. Take lots of photos and see what the effects are. This will also get your cat used to the presence and sound of the camera as well as the burst of light from the flash. Have someone else play with the cat using a wand with a feather on it or other point of attractive motion. Try to catch the cat in mid-air as it jumps and leaps.

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