Originally posted by normhead Sez you.... a lot of people love their 16-50s.
The first one was replaced by a new copy, during the warranty period. Reason : SDM failure. The second underwent three or four maintenenances which still did not fix the issue and was replaced by a brand new one by Pentax Europe. The brand new had autofocus issues at 50 mm straight from the box. The defect was fixed. Shortly after the right part of the frame suffered a severe sharpness fall off. Received the lens back not long ago. I can't call this lens reliable.
Besides it is not too sharp wide open and the corner / side performance leaves to be desired.
Quote: The Sigma 18-35 outperforms a lot of glass on a lot of systems, so what? so does the Sigma 35 1.4.. So one company makes a couple good lenses and everyone is supposed to throw a fit? Or is it just you?
I am not throwing a fit, I am just stating the facts.
Quote: Well actually no. They sacrifice wide apertures, not optical performance. They actually increase choice by allowing me to carry 3 lenses for what would be one modern Sigma. I can only carry so much weight.
I see no point in carrying 3 lens, instead of one, which outperforms them optically and offers more flexibility. Why should I compromise if I have an option not to ? As some poster mentioned in this thread, there is no point in having a prime which performs only as good as the zoom.
Quote: Like how many do you need? They have a 200 2.8, a 300 ƒ4, a 560 ƒ5.6 and a DA* 60-250 ƒ4 all of which are very high quality. How is that limited?
DA * 60-250 is only F4, which in some cases is not enough. Besides the contrast is quite bad, even in bright light. 300 F4 is rather soft wide open and the copy I used had a rather quirky autofocus. Did not have a chance to try 200 and 560.
Quote: Have you actually done any research on this. because every time I research this I see other brands with astronomical prices.
For example the price of FA* 85 is quite high 1000 + $, FA limited's are also very expensive, atleast in Europe - around 1000 Euros.
Quote: Did you really think a small company like Pentax can compete with everyone in every segment of the market? They've forgone competing in the "big and heavy" to compete in light and portable. Not every one has to shoot Pentax, those who want big and heavy can go elsewhere or buy Sigma. Those of us happier with slower and more portable can stay with Pentax. Most camera companies are really weak at good lightweight portable lenses. Why don't you call them out? Aftter all. look at all the holes in their high IQ very portable line up?
I don't think they that they compete with CaNikon even when it comes to camera sales, at least here, in Europe. Their products are for the most part ignored (unfortunately) by mass consumer. Plastic wonders and alikes are aimed at mass consumer and are an intentional compromise of price/quality. I am not going to blame these lenses, or the approach, but I (I assume I am not alone) would expect them to produce a line of optics with the best possible performance. Sigma showed that it is possible and even the price is quite affordable. Unfortunately there is not enough third party lenses for Pentax system, which limits the potential possibilities.
Don't get me wrong, I absolutely love my K-3, DA 35 Limited and FA 50.