That's the one! Cheers Pentaxian450

I know this is a little irrelevant to the current thread but also, when you have High ISO noise reduction on, the K-x will take two shots at different exposure settings, using the difference to help cancel out noise. (Or so the manual reads)

Having very recently bought a K-x (very pleased with it), in the mountains of reading and research I've done I've come across wide angles and fish-eye lenses.
My questions are these:
Are wide angle lenses the same thing as a fish eye?
Does a wide angle gradually become a fish eye the shorter the focal length and if so, roughly at what point?
Ideally, I'd like to get a wide angle lense for landscapes et al.
If someone can recommend one (hopefully not too expensive) I'd be very grateful. I don't know if my next question falls into a similar category or not but I'll ask anyway:
I've seen some 50mm fast f1.8, f1.4, f2.8 lenses about as well. Is it to say that you cannot zoom with these lenses? Is it right to think that they have a very big aperture, as such allow lots of light in and thus for fast(er) shutter speeds?

Thanks in advance

Hello Everyone!

Recently bought myself a K-x (twin lens kit) and I'm very pleased with it so far. Far more technical ability than usable brains but I'm getting to er...grips...with my pride and joy very well. It's my first dSLR.