Canvas size; logos; favicons
 

I want to create a logo that can be used for letterhead, the web, etc. Any recommendations for a canvas size for the master image? Once the logo is created, how would I go about creating a favicon from it? In wikipedia, there is a lot about sizes and file types, but in general, how do I reduce (or export) the size of an image to something much smaller, and a specific size like 16x16 pixels? My logo is made up of OG lines and a circle. If I group the objects and then reduce the size in OG (by shift-dragging a corner), the lines stay the same thickness.

I have Pro 5 (and Pro 6 which I'll be able to use shortly after I get my 10.8 system up and running). thanks

Some progress: I found the Scale box in Export. Through trial an error, I was able to get the exported size to 16x16 pixels. At the default 72dpi, the output is awful (staircased); I tried 360dpi, and there is improvement there, but I don't know what is appropriate for favicons.

I neglected to mention the Word Press site (where this icon is going) says it should be a .ico format; lists some sites to convert to this format.

[url]http://codex.wordpress.org/Creating_a_Favicon[/url]

I ended up just scaling at export to .png, and when looking at the favicon in a browser, it seems somewhat comparable in quality to others from big sites, so I think I'm good to go.