Hello al! Now that I am learning so much about my camera (thanks to this site), I think its about time I learn what these filters are for! I have a UV, a Polarizing, and a purple one. What are the for? Currently I have the UV one on my lens, more for protection than for anything else. I assume the polarizing would be good to keep my pics from being to bright or washed out? Clueless on Mr. Purple. Help! ;)
the purple filter will bring out the "purple color" like in sunsets or sunrises, anything that has purple that you take a picture of, with the filter, it will make the color purple richer instead of washed out. I have a red filter and when i take pictures of something with red in it, it will make the red richer. Hope that helps. :)
The Polarizing filter is used mainly for landscape photos. If you attach it you can then rotate it to change the strength. You can make the sky bluer and the grass greener.
It is also useful if you are shooting through a window as it will reduce reflection. The same principal applies to water, taking the glare/reflection off water.
As for the purple filter I am not quite sure but it could be an ND filter. If it is an ND filter it can be used for letting in less light. A good example of a use for this is making water look silky by using a longer exposure.
Hope this is of some help. No doubt others will have plenty of other ideas to help you along the way.
@sassyinma UV will cut out the (invisible to our eyes) ultraviolet light from reaching the sensor, which will react to it. Especially on those high "SF" days. It will require a overexposing if your metering is not TTL (through the lens). The polarizing filter will reduce or eliminate reflected light (more accurately non-coherently polarized light, suggest you look up on wikipedia or other). You need to rotate it until you see the distracting reflections vanish. Again, you have to have the viewfinder TTL, as with DSLRs, to see this. Hope that helps some.
@heyitschris21@jdonnelly@frankhymus Thanks guys! My purple one says FDL on the side ;) I am going to try some Landscapes today so knowing that the polarizing filter is good for that helps alot! I will research that polarized light on wiki because it sounded like greek to me! ;)
@sassyinma Just think "unwanted reflections in a glass window" and you can't go wrong! The name "polarizing" comes from the physics of light waves. "Reflection Remover" might be a better common and understandable name! :)
@sassyinma My advice, if (and note I said if) you are going to get into this, the biggest mistake you can make is to "buy cheap." Inferior glass placed between the image and the sensor can only make matters far worse. Good filters are not cheap.
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It is also useful if you are shooting through a window as it will reduce reflection. The same principal applies to water, taking the glare/reflection off water.
As for the purple filter I am not quite sure but it could be an ND filter. If it is an ND filter it can be used for letting in less light. A good example of a use for this is making water look silky by using a longer exposure.
Hope this is of some help. No doubt others will have plenty of other ideas to help you along the way.
The red one is used to increase contrast in B&W. Usually to give a dark sky with white clouds.