Tiffen 105mm UV Filter
The Tiffen 105mm UV Protector Filter is a general use, clear filter that helps to absorb ultraviolet light and reduce the bluish cast of daylight. This filter is especially useful when photographing at high altitudes or around bodies of water. No additional coloration or contrast is provided, allowing you to pair this filter with others.
The UV filter is also useful as a general protective filter to leave on lenses at all times. Filters help to reduce dust and moisture from reaching your lens element and provide additional protection in case of drops or situations where scratching could occur.
Tiffen filters are made using ColorCore technology; a process that involves laminating the filter substrate between 2 pieces of optical glass, grinding flat to a tolerance of 1/10,000th of an inch, then mounting to precision metal rings.
- Absorbs some ultraviolet light and reduces bluish cast of daylight.
- Clear filter provides no additional coloration or contrast, allowing you to pair this filter with others.
- General protection filter reduces dust, moisture, and scratches from reaching lens elements.
The purpose of a UV / Clear / Haze filters today is to simply protect the front element of a lens. In the past, these filters were used to block UV from hitting the film. All digital camera sensors have a UV/IR filter in front of the sensor, so there is no more need to use UV filters on DSLRs. Many photographers use these types of filters for protection, because it is easier and cheaper to replace a filter than to try to repair a scratched or broken lens element. I personally prefer to keep a clear filter on my lenses at all times, because they are easier to clean.
One thing you have to make sure before you purchase a clear filter, is that you buy high quality glass with special multi-resistant coating (MRC). The worst thing you can do is mount a low quality filter in front of an expensive lens. Not only will it hurt image quality, but it will also add nasty reflections, ghosts and flares to your images.
Should you use a clear filter permanently on your lenses? This question brings up heated debates between photographers. Many believe that adding a piece of glass in front of lenses only hurts images and does very little to protect them, while others like me keep them for piece of mind and easier cleaning. Some lenses with threaded front elements can be painful to clean, so a clear filter would make lens maintenance less cumbersome.
To avoid vignetting and other problems, UV filters should never be stacked with other filters.