If you ever pick up a camera you should check out Noiseless, the brand new app for your Mac from Macphun. It requires Yosemite. It eliminates all the noise from your pictures. Noise is those little dots that show up in your shots and make them fuzzy looking. Most frequently they show up in photos taken inside where there is no adequate light source.
For the amateur photographer it will fix the photo automatically. More experienced photographers can utilize a pallet of tools. Here is a photo I took that shows the before and after.
I love using this. I just drag and drop my photo and it appears on the screen showing my photo cleaned up on one side and the original version on the other. If I like it, I just save it and it is a new, clean photo. You can save it as a .jpg by exporting or you can save it as a .mpn file which allows you to continue editing. You can also crop or share your photo from the application. Now for the very best part, right now you can download an early preview version http://macphun.com/noiseless for free.