Originally posted by brainwave This is true specifically for India, and only for the 35mm and 50mm bracket. I did check the Nikon lenses for 70-200 f/2.8 and boy its as expensive as Pentax lenses, don't know if it is weather sealed to go with.
Do you happen to know if there any difference in color rendition between 28-105 and the 24-70 f/2.8?
In any case, here is my
flickr for reference, all images are with the K-1 and the kit lens (sometimes adding a screw-on macro filter for some close up shots).
You have some nice images in there so I don't think your photographer skills are lacking.
As a couple other posters have mentioned the DA50 1.8 is a value-priced lens punching well above its weight. The Tamron 90 macro looks like another great value but still delivering great images. Bonus for it doing double duty as a portrait and macro lens. Keep an eye open for a Tamron or Sigma 70-200 2.8 to go along with those two and you're golden in your lens range and quality IMHO while keeping your budget under control.
You can create some amazing images without the latest pro-level glass, and I personally think you have the talent and creativity to do so based on what I'm seeing on your Flickr page.