Originally posted by mde1970 Thanks everyone. Looks like Its a pretty common for people to get confused by this.
Yup. Even those of us who think we know something can get burnt. But that's how we learn, eh? We learn good judgment from experience. We gain experience by making bad judgments. An endless cycle...
Quote: RioRico - thanks. I'm only looking at pentax-a series as really wanted the aperture to work through the body, but this is all good information :-)
There's a paradox or GOTCHA! here, to wit: Pentax K- and M-line lenses are slightly more difficult to use than A-line, but ordinary A-line lenses are considered to be not so good build-wise, especially compared to K-line glass.
The common view is like this: Pentax made superb Takumar screwmount lenses. Their original K-liners were often just Takumars in bayonet mounts, supplemented by a few superlenses like the K50/1.2. K-liners tends to be HEAVY and SOLID. Then Olympus released the OM-1 and Pentax decided to to compete with their M-series, so M lenses tend to be quite small, with different+slower optics. Then Pentax decided to upgrade the aperture control and reduce costs, and so released the A-line with electric contacts and more plastic parts. Read the user lens reviews and see how often PLASTIC appears under CONS.
I'm not talking about the A* and Ltds, which are always premium gems, nor about 3rd-party lenses, which can be all over the place quality-wise. But non-premium A-liners are usually valued more for their ease of use than for their build and feel and look. Caveat emptor.