Originally posted by tigrebleu
I do understand your point, though, Canon and Nikon offerings in this focal length range is limited to rather big FF lenses on APS-C DSLRs. Though all these lenses have rather good IQ, they're... big, LoL. Good job on your part of the research, BTW. You even included the prices, something I didn't care as much about.
Thanks for your reply and kind words, tigrebleu,
As a matter of fact, it was the price, as much as anything else, that prompted me to begin this thread.
Since the DA Ltd zoom was announced, several posters have complained about the price. Granted, Limited lenses are expensive compared to more general-purpose offerings, sometimes 2X or even slightly higher. It is hard to judge this accurately because the Ltd line features some 'odd' focal lengths (21mm, 70mm) that aren't produced by many- if any- other makers. Also, it's very difficult to put a price on all-metal construction vs plastic/composite construction, finer tolerances, etc.
But I had no idea if $1,000 USD was WAY out of line for a zoom in this focal range and speed.
What I found is pretty clear in the OP; It's not out of line at all. For those who stick to OEM lenses, The Pentax Ltd zoom is smaller, lighter and in three out of four cases, less expensive. It is, at worst, one stop slower, compared to the f/2.8 (constant) Canon/Nikon offerings.
In real-life APS-crop use, it is small consolation to know that the 24 ounce lens you're lugging around weighs so much because it also fits a FF body. It's still twice as heavy, much larger and there's a 75% chance it costs more than the Pentax Limited zoom. It was the only OEM choice you had in this focal range.
If anyone wishes to compare 18-55mm lenses or other greater-range zooms, please go ahead and do so.
On another thread.
Apples to Apples, Oranges to Oranges.
Ron