April 2011
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5 Photo Tips – some tips about filters, explanations, different types

Tip 906 (What are Photography Filters): Very broadly, a filter is a an optical disc that is inserted in the path that the light takes while entering the camera. Filters are used by photographers since they allow a greater amount of control over the photos that are taken; this can involve getting some special effects, and in other cases, the filter just provides some extra control over the images. Filters are typically screwed onto the front of a lens, or can be mounted on a filter accessory.

Tip 907 (More care needed because of filters): One of the biggest problems in photography is making sure that your equipment is clean and does not cause problems in the photo. Photographers already have to worry about scratches on the lens, or dust on the lens, and so on (which is even worse when the environment is dusty, sandy or wet). However, when you add another filter on top of the lens, you are increasing the care you need to take.

Tip 908 (More exposure needed for filter): Experienced photographers already know about this, but for people who are starting to use filters, it is important to know that adding a filter on top of the lens does slightly decrease the amount of light entering the camera, and hence you need to make adjustments in your exposure calculations for handling this.

Tip 909 (Clear filters): What are clear filters ? These are also known as optical flats, or window glass filters. These filters are used primarily to act as a protection for the lens; consider the case where your lens bumps against something. If something like this happens, you would rather that a $10 filter gets damaged rather than your lens which would be much more expensive.

Tip 910 (What are UV filters): UltraViolet filters are used to reduce the action of ultra-violet light which can cause haziness in the photos. Such a filter does not cause any impact on normal visible light; these filters can also be used to protect your lens.

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