Originally posted by imtheguy Thats why we have this section called Beginners Corner so people don't get rudely answered with questions of inexperience!
Fair enough, I was rude. My apologies to the OP.
Seeing "My K-x [insert complaint here]" threads daily get's old though. It's been proven over and over that the camera is only as good as the person using it. It's a high precision tool, and as with any tool, one needs to learn to use the tool before it becomes more effective than the alternative.
However, you must admit my point (RAW > jpg) still stands. If one isn't going to use the camera to it's fullest, then wonder why it's not "impressive"....I don't know, the logic seems flawed to me. It's like someone moving to Germany, purchasing a Ferrari (or other high end auto) for the sole purpose of driving on the Autoban...but they never go faster than 25mph. Just doesn't make sense.
The K-x is a VERY capable camera. It's, IMHO, the best in class DSLR (price vs. IQ vs. sensor performance vs. etc.) to date. Debatable, indeed...but most definitely better than any P&S by a much larger margin than 10%, even in JPEG.
I will concede though, the kit lens, while superior to other kit lenses, is not a very "fast" lens and does produce purple fringing and isn't as sharp as a higher quality lens will be.
To the OP:
My apologies.
I would suggest you first read the camera manual. After reading that, purchase a copy of "Understanding Exposure" by Bryan Peterson. After that, go back and read the manual again, it will make much more sense.
THEN, if you're not used to using any sort of computer program to edit your photo's, take your daily shots using the RAW+ setting. This will allow you to capture your shots in both RAW & JPEG formats using the in-camera processing, but also allow you to learn to use [insert your choice of photo editing programs] while knowing what your end result "should" look similar to (having the JPEG version of the same shot). Over time you will learn to edit RAW photos with some proficiency and rely less on the JPEGs.
Once you're comfortable shooting straight RAW, a whole new world opens up, trust me.
Again, the aperture issues you describe are inconsistent with my own experiences with the kit lens, so some visual examples of shots taken with the aforementioned aperture values would be helpful in determining your dilemma.
Hopefully I was more helpful this time.