Petal lens hoods are usually used on wide angle lenses.
Petal lens hoods get their name as a result of their design. Traditional lens hoods are simple tube shapes that connect to the front of the lens to prevent stray light from entering the lens. Petal lens hoods are typically used on wide angle lenses and look like four flower petals aligned to form the lens hood. This design keeps light out and minimizes the risk of the corners in your picture being blocked by a traditional lens hood.
Instructions
1. Line up the guide dot on the petal lens hood to the lens, and rotate the lens hood until it locks into place.
2. Position the lens hood so it blocks out light from entering the lens from the side. This stray light will cause bright spots in your pictures known as a lens flare. The lens hood can be adjusted to be used either vertically or horizontally.
3. Hold the camera to your eye, look through the camera viewfinder and check the corners of your viewfinder to make sure the lens hood is not blocking out any portion of your frame. If you are using the correct lens hood for your lens, this should not be a problem. Compose your picture, and press the shutter release to take your picture.
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