Originally posted by monochrome The problem isn't so much that the lenses aren't good enough comparatively. The problem is that the standard for 'Good' has changed over time (mostly as a result of computer-aided-design and modern manufacturing techniques) so that the principal benefits of the new technology (improved sharpness, which is objective, can be measured, and thus ranked) is now the principal ranking standard. Image beauty (which is subjective) is no longer an evaluative standard for a lens comparison. Sharpness should be for Macro but we look for it in everything and we look for it with a virtual loupe. Science has triumphed over art.
To my taste many legacy Pentax lenses have yet to see their equals in the modern world - but I'm an old guy.
In my view, the "art" part of photography is between one's ears.
After that has been taken care of, one must choose the best tool for the job and I would like to be able to choose the best technical performance.
Besides it's easy to reduce corner sharpness, add some vignetting and some flare or tweak colours in post processing for "creative" purposes, while the opposite is sometimos difficult or even impossible be fully acomplished, at least not through a fast or lossless process…
Why should I "cripple" the potential from the start instead of using it to it full abilities?
I could use the DA 21mm as an example as I was once "forced" to sharpen borders of several group pictures (school children) with a "gradual" mask after realizing that the edges were totally blury (and suffered from pronounced geometric distortion).
R