Originally posted by sculptormic I could buy it but I don't think it is worth it in my oplnion. Will it be twice so good as a 85/1.4 Sigma art? More then twice the price it will be. Since there are no more third party manufacturars Pentax can sort of ask what they like.
I know these modern high resolution lenses have to be bigger while I personally tend to want smaller lenses. That's why I am quiet happy with the 77 lmt
There is a phrase we use in manufacturing called the law of diminishing returns. What it means is that quality does not increase in lockstep with price. It is used to refer to a point at which the level of profits or benefits gained is less than the amount of money or energy invested.
There is also the economy of scale to take into account. The Stigma has been around for a number of years and is available in several mounts. It will sell many, many units for every one unit that Pentax sells. Again, if the cost to bring a product to market (R&D, tooling, etc) can be spread over thousands of units, the cost per unit will be far less than if the cost can only be spread over tens of units.
If you are basing your opinion solely on unit cost as a comparison to the Stigma lens, you are not taking any of the things that are increasing that cost into account.
Sadly for many, the days of Pentax being the cheap and cheerful brand bringing good equipment to market at rock bottom prices is over. They tried that for a couple of decades and it cost them their company. It appears that Ricoh has a very different vision. They don't seem interested in pursuing the mass market, they are pursuing the specialty camera market. It looks like, going forward, we can expect relatively low volume (Pentax is low volume anyway) high quality and expensive products.
People that can't deal with that would be well advised to move on. Ricoh is sending very strong signals regarding which way they are going with the Pentax brand, and they seem to be going for the top drawer, not the bottom one.