Today, photo editing software allows us to achieve many of the stunning effects that were once only produced using camera filters and lighting. However, while you may not require the many variations of filters available for film cameras, there are still a few filters that can enhance the performance of your digital SLR cameras - here are some for you to know.
Polarising filters - polarisers are ideal to control the appearance of reflections and to reduce glare. Polarising filters limit the type of light that enters your camera lens, thereby minimising the appearance of haze from light reflected on water droplets. Meanwhile, by reducing the appearance of reflections on surfaces, colours will often appear brighter, especially in landscape photos.
Neutral Density (ND) Filter - ND filters limit the amount of light entering the lens so you can increase the aperture in bright outdoor lighting. They are used primarily to prevent overexposure of your images and limit that undesirable washed out appearance.
ND Graduated Filters - these are a variation of ND filters and are preferred by many landscape photographers. ND filters decrease the amount of light let in at the top of the shot while letting in more light at the bottom of the image. The result is crisp blue skies and beautiful cloud formations with picture perfect landscapes below. Most ND Graduated Filters are slot-in filters, and require an additional attachment to fit onto your DSLR camera.