In film camera days photographers would buy all sorts of color filters for their cameras to create special effects. In the digital era color filters can be applied by the camera or with computer software. There are four common filters that software has not yet replaced. The protective UV filter for the lens, the polarizer filter, the neutral density filter and the graduated neutral density filter.
The protective UV filter protects the lens against scratches and dust at the same time cuts down the UV light that sometimes give the pictures a bluish cast. The polarizer filter reduces glare and reflections from glass, steel and water and enhances the color. The neutral density filter reduces the light going into the lens but does not change to color of the light. By blocking out light on a bright day it is possible to use a slower shutter speed to get the silky smooth look of flowing water. The graduated neutral density filter gradually blocks light for half the lens. This is helpful for landscapes when the bright sky makes it difficult to adjust the exposure for the dark landscape. Check http://electrosounds.net now for some other advice.
Quick Start Recommendation: Buy a UV filter for lens protection and Polarizing filter for general photography. If you are doing Landscape a graduated neutral density filter is a must.
Remove distractions – if there are elements in the scene that has nothing to do with the subject yet draws away attention, those elements should not be in the photograph.
Use symmetry – symmetry gives a wonderful look to a photograph.
Use asymmetry and balance – when asymmetry is used, it should be balanced. An asymmetric balance in an image could be a large subject on one side weighed against a small subject on the other side.
Use converging lines – converging lines, like looking at a set of railroad tracks that seem to touch at a distance, directs the eyes to a focal point and adds depth to a photograph.
Watch your horizons – if you have a horizon running across your image, try putting that horizon above the center or below the center of the image. Make sure the horizon is straight. A tilted horizon looks accidental unless it is really tilted.
Tilt & Shift Lenses
If you are serious about photographing architecture you may want to consider purchasing a Tilt-Shift Lens. Regular lenses cause parallel lines to converge, like looking at railroad tracks coming together at a distance. Tilt-Shift lenses allow you to adjust the image so that the building’s lines remain parallel.
Fisheye Lenses can capture almost 180 degrees view of your surroundings and gives a bubble look to your photograph.
Camera Lenses at Amazon.com
Fisheye Lenses at Amazon.com
Modern DSLR lenses usually come with Autofocusing features but not all lenses will come with this feature. Be sure to check for this feature if this is what you are looking for in a lens.
Many modern DSLR lenses have the Image Stabilization feature to minimize camera shake when you handhold your camera to take a picture but not all lenses have this feature. Be sure to check for this feature if this is what you are looking for in a lens.