In part two of the filter myth, Chris says that while we don't really need filters on the whole. There are some filters that are crucial, especially in bright sunlight. Bright ambient light requires short shutter speeds, and a neutral density filter will block a lot of the light. This allows you to slow down your shutter speed to get a more blurred look, or open up your aperture for better depth of field. So outdoors, a good neutral density filter can open up the creative side that's been limited by bright conditions.You can even get them with gradients, called a graduated neutral density filter, so you can darken down the bright sky without hitting the subject. Polarizers are a good idea too, but Chris recommends circular polarizers because the camera reads them better. It helps by removing reflections so you can get better color. It'll also help cut down on glare.
One other filter is an infrared pass-through filter to give you a different view by only letting in the infrared spectrum. A Skylight filter changes the color, but you can do that in post. It's mostly used for protection.
Don't forget our current assignment - UpsideDown! Take a photo that demonstrates the concept of "UpsideDown" and post it to the Tech Guy Group on Flickr. Make sure to tag it with the word "Upside Down" as well! If Chris likes it, it could end up on our next photo segment!