Originally posted by GeneV Well, not worth it to you, but I'd like to use my pixels, thank you.
Your couple thousand pixels out of tens of millions? It's a very small difference. If you resize your image for, example, posting on the web or printing, you won't notice any difference. And you're welcome, but I don't know what you thanked me for.
Originally posted by GeneV If it is a matter of cropping we could all shoot everything with the 15 and crop it down. Why make a 21?
That is ridiculous hyperbole and unnecessary. I'm talking about a difference of two to three millimeters in focal length between a lens that exists and a lens you want. Not any more.
Originally posted by GeneV In addition, I doubt they could make a compact 15 at F/2.8, but they definitely could make a small 17-18/2.8, because others do.
Who "others"? Nikon's 18/2.8 is huge compared to the Pentax 15/4. Olympus' is pretty compact but only covers a 4/3 sized image circle and acts like a 35/2.8.
Originally posted by GeneV No, it is not too much to ask Pentax to make a lens that is the equivalent of one of the most popular film lenses on the planet. Nikon and even Olympus does it, and neither costs any more than a DA series lens.
But I do get that you won't be buying it.
As pointed out above, no, they don't do it. And there's no reason I wouldn't buy one, other than the fact that it will never exist.