Hi guys ( and gals )

Just want to ask.. Each time I read about some article mentioning a certain camera, there is always this number thingy ( xx - xxxmm ) followed by f/X. I think the f thingy is the aperture size right?

so what do the other one with a range mean? is it the lens? what is the significance of the number?

Someone pls enlighten me. Thanks.

## Bookmarks