Originally posted by ATLphotog Thanks for the first several comments, these are helpful already!
Here's more info about what I shoot:
- Mostly non-paid stuff like family & school events - casual, but enthusiastically so about capturing day to day moments
- Mostly natural light situations
- A lot of people shots where I want sharp focus but depth of field that gives nice bokeh
- A lot of amateur nature photography too, all outdoors
- Some lower-light and motion-heavy situations, like photos at sports events or plays or official functions for my kids that are held indoors
- Some paid work, all of it residential photography. That's the other reason I'm considering a big change - I need a great wide-angle lens to get residential interiors, which got me thinking - if I'm going to invest in a new wide-angle, but am ready to move up from my Nikon D40 - why not reconsider the whole paradigm/camera make and maybe start anew?
I look forward to any and all comments - hope that helps clarify what I shoot.
Welcome to the forum! I too come from a retro film background. With your background, and with such a variety of interests for shooting, the KP is a very obvious recommendation. Right now, perhaps for the holiday season, B&H is running excellent price deals. A camera of such quality at less than $800 is an amazing value! I bought mine from B&H, with whom I have dealt for years, and I have always been happy with their prices and their service. It has never been under $800 until recently. It might go up again- this has happened before.
For maximum versatility for your described needs, the DA 18-135mm is hard to pass up. The lens price is on special also. Very well-built, comes complete with lens hood. Its AF is especially good- fast, accurate, and quiet. There is currently a discussion regarding this lens within the troubleshooting and beginner help section, in a thread entitled "which k-70 package?" with sample shots furnished by Des. This lens makes an excellent pairing with the KP since it is so compact, yet very well-built. I have both lens and camera, and I have loved the KP so much I bought a 2nd body! The comments as to the K-70 are magnified yet more when considering the KP. An upgrade in controls, build quality, and features. Again, such quality at that price is truly rare.
At the same time, that list of lenses your friend offers is worthy of consideration. I also have the very fine DA* 50-135mm f/2.8 which is of extremely high quality and especially good for low light situations. It is also amazingly compact for such a lens. Imaging and design are superb. During AF or zooming, nothing of the lens's exterior moves. It remains the same length and balance. Unlike the DA 18-135mm, its AF is not real quick. It employs an old version of the SDM AF system, which has sometimes failed altogether. If that happens, it can be converted to using the camera's screw-driven AF, which also improves AF speed (unlike consumer Nikons, all Pentax models can still use older lenses with this type of AF). I believe UncleVanya provides this service at very reasonable cost if needed. I've had mine for 10 years, and used it with several camera bodies without any problems. It pairs well with a short, faster-aperture zoom lens of high caliber. I sometimes use my DA 20-40mm f/2.8-4 Limited with it (superb!), or my Sigma 17-50mm f/2.8 EX DC (excellent!).
Your friend's DA 12-24mm f/4 would be a great choice for interiors, architecture, and more. Image quality is again superb, distortion is low for a wide angle zoom lens, and it can deliver excellent edge-to-edge sharpness. With the KP's exceptional higher ISO low noise performance with very good preservation of detail, f/4 becomes at least as good as f/2.8 on most other cameras. I have this lens also.
So which lenses I put to use depends on what conditions I will face and what kind of subjects I will be shooting. Any of the above on the KP will deliver exceptional results for their intended use.
If you like to shoot time-saving, high-quality jpegs, be sure to implement "Fine Sharpening" in the KP's Custom Image menus. If you have any trouble doing it, just check back, perhaps with a new thread, and we'll walk you through it. Very important for fine detail in your images.