Originally posted by jgnfld Can I get her phone number???!!!
Seriously
I assume that you do have a budget beyond the 50 dollar lenses that have been suggested, but as a hobbyist, probably not enough to warrant for pro level lenses (meaning over one or two thousand dollars per lens...).
So here's some suggestions...
To start, the DFA 28-105mm f/3.5-5.6 lens. This will cost you about $500 (assuming you are in the US), and will be your carry-everywhere lens. It will give you a moderate wide angle (28mm) to short telephoto (105mm) and cover a lot of situations you will encounter.
Next, the question is, how wide do you want to go for your landscapes? Here's some options wider than 28mm:
- Pentax 20mm f/2.8 - this lens is not so common but can be found used. There's an A version (manual focus) and an FA version (autofocus). They both will cost about the same - some 450 to 600 dollars depending on how pristine the copy looks like.
- Samyang makes some great primes, but they are all manual focus, which you seem to be ok with (assuming by manual you mean manual focus). They are: 24mm f/1.4, which will cost you about $470; the 20mm f/1.8, costing about $470 as well, and the 24mm f/2.8 which is about $250. All 3 are considered very good lenses but you should test them when you receive as there are a few reports of decentered copies out there (these are prices for new lenses, so if you receive a defective lens, just send it f or a replacement).
- There's also some older and affordable discontinued wide angle zooms that can still give you very good results for landscapes, meaning you shoot from f/8 and smaller apertures (f/8 to f/22, though usually f/22 is to be avoided because of diffraction). They are: the Tamron and Sigma 17-35mm f/2.8-4 (right now I can't find any for sale anywhere but they should be in the $200-300 range when one does show up in the used market); and the Tokina/Cosina/Vivitar/Phoenix 19-35mm f/3.5-4.5 which is a bit easier to find in the used market, and these sell for about $100 and up. The Tokina version (which I have) tested better than the Tamron and Sigma 17-35mm lenses for edge-to-edge sharpness (the Tamron and Sigma were both a bit sharper in the center), but it has a bit more distortion (which can be fixed in post). That is according to the site
LensTip.com - lens review, lenses reviews, lens specification - LensTip.com which has tests of all 3 lenses.
- Finally, the SMC Pentax 20-35mm f/4 is a very nice lens that can be found in the used market. Unfortunately since wide angles are not so common in Pentax-land the prices have gone up, so it's not uncommon to see it in the $600-700 dollar range nowadays... or even more...
There are others but they might not perform so well on the K-1 (like the SMC-M 20mm f/4). I think these are your options... and then there's of course the professional grade (and very large) SMC 15-30mm f/2.8 which will cost you just under $1300. Lots of people here seem to have it and love it
but it will cost ya...
Edit: there's actually a Tamron 17-35mm f/2.8-4 for sale here in our Forums MarketPlace, in the For Sale section.