If you need more power and flexibility from your flash than the built-in unit gives you, you may want to purchase an external flash unit. Only cameras equipped with a hot shoe or contact are compatible with off-camera flashes. Some manufacturers offer dedicated units that are designed to work with particular camera models, but if there's no recommended flash unit for your digicam, you can find a wide range of flash units available from better photo equipment retailers. Filters Filters can help you control the effects of different lighting situations or create special effects. You can also use a clear UV filter to help protect your lens in rough shooting conditions.
Some manufacturers offer filter kits for digital cameras.
Some digital camera lenses are compatible with attachments that change their angle of view. Macro or close-up attachments let you fill the frame with small subjects and capture a higher degree of detail. A fish eye will give your lens an angle of view of about 180 degrees, as well as giving your image a distinctively curved distortion. There are also adapters for some cameras that allow certain 35mm lenses to be screwed on. Lens protector SA lens cap is essential for protecting your lens from dirt and scratches when you're not shooting.