Originally posted by Kunzite They're certainly better in real world usage than in technical measurements. Unfortunately, technical measurements are what people are talking about, on gearheads forums.
Did you notice that DPR tested the K-1 with the 77mm Limited? It does well for a film-era lens, but even at f/5.6 you can see it's not as consistently sharp as the more recent competitors. The result? The K-1 is penalized a little.
Do you remember the claims that Pentax cannot design optics on the same level as the Sigma Art? All we have in response is some old article written by Mike Johnston.
Rebuilding their reputation - and hopefully, a bit of hype - as a top optical company means new designs. I'm willing to pay the price of including the FA Limited-like pleasing rendering into a no-weakness design.
A DFA 20mm f/4 Limited (WR DC)? I'd buy it today.
I guess. Pentax needs to have some f1.8 lenses in their line up. For those I'd rather have lenses that do well in real world situations. Most landscapes are shot at f8 to f11 on full frame. You don't need an f1.4 aperture to do that and in fact, the more glass you have in your lens, the more likely you are to have flare.
As far as the FA 77 goes, to me what stands out about it are its transitions from in-focus to out-focus areas, which are exceptionally smooth, and its bokeh which can turn an average photo into something that is pleasant to look at. Micro contrast is also really good.
Gear heads are gear heads and while I can appreciate high end glass with corner to corner sharpness, I hope Pentax continues to turn out lenses that continue the historical ethos of the limited line up. Of course there will be the DFA * line up for those who need large apertures and ultimate sharpness. Hopefully DP Review can get a copy to use on their site.