For example, "AF-S DX Zoom-Nikkor 18-135mm f/3.5-5.6G IF-ED"
I know what the basics like 18-135 mm. I know the f/3.5-5.6 (or at least I think I do). But the big things:
What does the G stand for being the f-stop
What does the "IF-ED" mean?
What does the "AF-S" mean?
Any info on this stuff, or even if you can direct me to some resource that shows me all this stuff; (anytime I try googling any of these terms I just get sites with reviews or selling lenses with those aspects.)
Thanks in advances guys.