Originally posted by JamesD I always learn so much from your posts, Will. Thanks for taking the time and expending the energy in providing such complete answers to our questions. Much appreciated.
there are no 'right answers'. I must have 10 or 15 lenses around the house maybe more. I'm never quite satisfied. You can easily spend all the money you have. The kit lens you have
covers the wide to normal range fairly well. the direct upgrade to the kit lens you have is the 16-50 SDM lens. I've got one. it's faster (F2/8) It costs 9 times more, but doesn't take 9 times better photos and is too big for the pop flash.
An alternative is to acquire a prime in the 20-30mm focal length area. this would give you a wide fast lens---particularly useful for groups of people indoors, but I would say that the First
'next lens' for someone with a kit lens is something longer. A small cheap solution
is the pentax DA50-200. small, lightweight and affordable. MOre expensive alternatives are on th Pentax roadmap. --- The retro solution is to go to EBAY and grab one of the obsolete 80-200 zooms that are fairly common there, though my favorite is an 80-320 that seems fairly common and usually goes for less than $200. For smaller cameras its a bit bulky and heavy, but I like it's balance on the K10.
Of course sports photography is all about action shots at some distance and you never have a lens that is too fast or too expensive to help with that, but cranking up the ISO speed helps a lot. Pentax has some as yet unrelased long fast lenses that will probably take a wheelbarrow load of cash to buy that will help. IF a flash is allowed, it does great things for 'stopping the action'. YOu can take flash photos as an amazing distance with a good sized flash and a high ISO.