Originally posted by JimmyDranox I have owned the Tamron and the Sigma 70-200 f/2.8 and used extensively both. I even made extensive tests with both, on test chart and out side. So, I knew very well the good and the week points of Tamron. The noise (grrr), the greenish colors (nasty, compared with Sigma), and others flaws. On the other hand, everybody (on this thread) is praising the qualities of a lens they never tested personally, a lenses that has no comparison with other lenses, yet, and up today, not even some full size samples published. How can you know that is so good? Remember, it is a lens that was postponed two times.
Do I have the right to question the price of a lens? To complain that is to expensive for most Pentax users? Look how many people still use K-50, K-5, and so on. For years, Pentax was ''POOR MAN'S LEICA'' Inexpensive and good lenses, inexpensive cameras with good construction quality. Now, Pentax is in danger to loose this title, and together with it, a part of his users. I know, a (small) number of people with a lot of cameras and lenses in their hands will say that they are not scared by that new price policy of Pentax. But ask the people which has only one K-5, what are their opinion. If Ricoh has chose to make extreme quality (which remains to be proven) for very few, instead of good quality for many, I, personally, think that is the wrong choice.
K-1 is very well priced, in fact, the best price for a new FF camera. But the prices for the lenses for it, are not on par. And how many, (or how few, considering a 65,000 strong community) has express their commitment to buy K-1? Can that be caused by the price of the new FF lenses?
Of course, I can be wrong. But the fact that Ricoh has drop the price in US, from 2500 to 1800, even before the lens has reached the shelves, has a simple explanation in my mind. Far to few preorders. And there is an old saying. Big margin means small sales, small margin means big sales.
I just think you need to be honest about what the current price for current generation 70-200 f2.8 lenses is. The newest version of the Tamron is selling for 1500 (not available in K mount), the Sigma is selling for 1150, Nikon 70-200 VR II sells for 1900, and the Canon 70-200 for 1949 (B and H prices).
The fact that Pentax settled on a release price of 1800 -- probably to drop a couple of hundred dollars down the road -- is very much in line with these prices. The old Tamron version is not really in the same league and the newer Tamron version is priced pretty close to it.
The question for me is not one of price, but function. If the 70-200 really is, as folks say, a great performer on the K-1, then the price is probably worth it. Certainly having silent, speedy and accurate auto focus tracking is something that we haven't seen consistently in the past.