Originally posted by birvie
I plan to buy the new Pentax K-x next week (Costco - $579 w/ two 2G memory cards and gadget bag). I will start out with the 18-55mm kit lens. However, I plan to save up (one thing at a time) for a prime lens. For someone on a real tight budget, what lens should be my first prime lens investment? I dabble in outdoor, nature, macro, still-life, etc. The key word is "dabble", so I am looking for a general, all0purpose prime lens, if suc a thing exists. Thanks for your suggestions in advance.
To meet all of the criteria above a really good zoom would be more appropriate than a prime.
You will discover, shooting with the kit lens that you have some reasonable coverage, but where the kit lens will fail you is in nature / outdoors and macro.
A high quality zoom from 50/70 on the low end and between 135 and 200 or even 250mm on the high end, that is
Close focus capable i.e. able to do 1:3 "macro" would be good. This would not only compliment your present lens, but let you try your hand at a lot of what you mentioned you dabble in, and see where you want to go next.
If you are covered from 18mm to 200 mm you are going to be able to do quite a bit with just the two lenses.
Once you have explored what you can do with these two lenses you can then start picking and choosing the specialty lenses.
You may want longer, wider, or bigger aperture (for either low light or creative use of limited DOF) but that is when you start thinking primes.
Of course this is all just my humble opinion