Hello
I'm a long-time lurker here, but it's about time to tap into the forum wisdom in a more active way
I'm planning on starting a small photo business. In theory it'll based mostly around photojournalism, in practice photographer around here needs to be a jack of all trades. I've decided to stay with Pentax for it's features, build quality and cost-benefit ratio. Right now I'm compiling a list of equipment needed, with choice of lens being most crucial. And that's where I need some advice.
I want to build a basic all-purpose kit, made by 3 or 4 lenses, covering most of the 18-200 range with constant fast aperture. Main body will be K-3, with K-7 as backup. Right now my choice looks like this:
Standard zoom: Sigma 17-50 f2.8. It's main contestants are Tamron 17-50 and Pentax 16-50. Sigma looks like good value for its price and of decent quality, I'm not sold on Tamron here. Pentax is nicely built and weathersealed, but for its price it should be better optically, so I'm not willing to spend that kind of money here (also, there's an upcoming DA* standard zoom in the roadmap, so hopefully I'll have some upgrade path from Sigma later on).
Telephoto zoom: Tamron 70-200 f2.8. Competed against Sigma 70-200 f2.8 and Pentax DA* 50-135. It gets favorable reviews, should work well with K-3, and again, good value for its price. I'd choose 50-135 for weathersealing and great quality, but I'm afraid I'll need that extra reach provided by third-party lens more, than 50-70 gap. Again, maybe I'll upgrade to it later? I didn't consider 60-250 because of f4 and price, Sigma is also much more expensive here than Tamron, and I can't see nothing in quality to justify it.
Portrait lens: Pentax DA* 55 f1.4 No contestants here, I could go limited but I prefer the seals. It's quite affordable and should fare better than third-party lens.
There's no real wide lens here, but I'm considering Pentax 12-24 if I can get it somewhere, or 15 f4 Ltd. Still, it's not a priority, A lens needs to pay for itself and I can buy one when I'll feel the need for one.
No here's the question: Did I miss something? Is there any good lens I missed and could take into consideration? Are there any obscure problems with those I'm willing to get right now?