http://www.letsgodigital.org/en/news/articles/story_2553.html
ED elements (i.e., more than one). That's good. F4-5.6. That may not be good or may not matter. Constant aperture would have meant that Pentax considers this a serious lens designed to give high image quality (as in the FA 20-35 f4 or the DA 16-45 f4). Variable aperture doesn't necessarily mean that it is a cheap consumer zoom, but it is not encouraging. I will wait to see how it is priced. Pentax does not have a good record with inexpensive consumer telezooms. If this is priced inexpensively, I will consider that a cue to avoid it. Joe
