On 10 Feb 2004 at 10:07, Jan van Wijk wrote: > It certainly looks worse, chromatic abberations are clearly vissible > in the high contrast parts for the Pentax. > > On the sharpness issue I am not so sure though ... > > Take a close look at the CROP-1 and CROP-2 examples, and check the relative > blur/sharpness of the foreground versus background (like fence versus powerlines) > > I can't help to think the Pentax was focussed a bit BEHIND the fence. > > With the same (or even wider open) aperture the background details with the Pentax > are less blurred than they are with the macro lens. > > This may account for a lot of the softness and blur seen at the fence distance. > With the smaller aperture values the fence comes into the DOF area completely. > > The Lantar is still better I think, but the difference is not big as it seems ...
It would be nice excuse but I did many shots and focussed each time, the results were repeatable. The DOF isn't equivalent before and after the plane of focus with these two lenses, neither is their optical formulation similar but for the FL. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
