Originally posted by Ferdinand Btw. is there any other Pentax (or third party) lens with similar image quality?
I would love to have a lens like this in a wide angle version too (for traditional landscapes), but it probably does not exist.
There are a lot of good lenses with comparable or even better image quality.
As for a wide angle of comparable sharpness that gets close to macro
(close enough to where the lens hood starts blocking the light on the subject),
the prime example would be the Zeiss ZK 25/2.8.
The one point to consider with that lens is that it is not a flat-field macro,
instead displaying a curved image field.