Howtosignalprocessing
An anti-aliasing filter in your camera. Some cameras include a physical anti-aliasing filter, also known as an OLPF, or optical low pass filter. This analog filter adds a very low level of blurriness to your photos that prevents just enough level of detail in small patterns to eliminate aliasing.
- Why do you need an anti-aliasing filter?
- Is anti-aliasing good for photography?
- Is anti-aliasing filter worth it?
Why do you need an anti-aliasing filter?
Anti-aliasing filters are used to blur the lines between repeating patterns in order to avoid wavy lines (often referred to as moire).
Is anti-aliasing good for photography?
Anti-aliasing will make your photographs look more natural and will help to offset any loss of quality caused by a lower resolution camera or setting. It's always a good idea to shoot at the highest resolution possible, but anti-aliasing helps to make sure your images look great.
Is anti-aliasing filter worth it?
Having an anti-aliasing filter certainly makes things easier if it's a problem that you face often. Still, some photographers don't like them because they prefer sharper images. If you photograph landscapes or nature images, you'll rarely find any aliasing, so you can choose a camera without an OLPF.
