On Nov 15, 2007 8:04 AM, Axel Belinfante <[EMAIL PROTECTED]> wrote: > made some choice, got the DA 10-17. > time will tell how I like the curvilinear reendering - or whether > I would prefer the rectilinear of the DA 12-24 after all.
Congrats the 10-17 is a really fun lens. > did get my first case of purple fringing/sensor bloat - > on branches of trees against bright (almost white) sky background. > (saw it at f/4.5, at 10mm and 17mm) It happens. Given the extreme nature of the lens I wasn't too surprised when I first got the lens > don't recall I have seen that before (in aprx 4K k10d exposures) > not that I tried so many other lenses so far - > would this lens be more susceptible to it than others? You've been very luck then. With regards to the matter of de-fishing, here is a quick & dirty example of a DA 10-17mm image de-fished using Hugin. Original (~115kb): <http://www.arach.net.au/~savage/Misc/Images/_IGP7211_original.jpg> De-fished output(~100kb): <http://www.arach.net.au/~savage/Misc/Images/_IGP7211_defished.jpg> De-fished output cropped (~90kb): <http://www.arach.net.au/~savage/Misc/Images/_IGP7211_defished_cropped.jpg> Using hugin it's simply a matter of selecting full frame fisheye as the lens type, inputting the focal length, sensor crop factor & selecting a suitable projection (mercator in this example). Give it a go. It's a free program & what's more it stitches panoramas too :-) Cheers, Dave -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
