they don't have any threads in front. the lens cover is two pieces, one of which is a slip on that happens to be 82mm thread. with that on the lens, you can use 82mm thin filters on the 15-30. i am guessing the same will work on the 12-24, but i don't know how much vignettting there will be. Pentax needs to release a 12mm limited DA prime that can take filters in front.
Herb.... ----- Original Message ----- From: "Ryan Lee" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, December 06, 2003 7:48 PM Subject: Re: Shopping for an ultrawide.. any advice? > Oh yep that's for sure. I assume if they give you a rear filter that more or > less means goodbye to front filters.. I didn't think they even had threads > in front!
