I was thinking of getting a K-5IIs to get better image quality out of my manual lens since it's more compatible than my D7000. Being so late in the game I don't want to buy it and a new model or full-frame comes out later. Do you believe the Pentax might release one soon or should I just get it now?

Hello, all. I've been looking around the market for a new 50mm lens for my Pentax K-7, and am having a hard time deciding which of the two lenses I would like... I shoot in a lot of low light situations, but I don't think the extra .1 will make much of a difference for me...

I am mainly looking for overall sharpness, contrast, color reproduction, and a smooth bokeh. I am more concerned with image quality than anything else right now, since I am new to buying lenses.

Any help, descriptions, or experiences/examples of these lenses would be fantastic.