Archived posting to the Leica Users Group, 2003/03/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Everyone. Gee I'm full of questions today. Was wondering. Assuming you ar photographing a subject with lots of straight lines, at what point does optically induced distortion start to become apparant in terms of percentage. I'm asking because I've seen lots of wideangles with figures quoted in the 1 - 2% region and I can't detect any distortion, barrel or pincusion. On the other yhand if I add 1 percent distortion to an image in photoshop it's easy to tell. Is photoshop using optically faithful simulations of distortion or is it something else. One of the reasons I'm interested in knowing this is that I'de like to undistort some images taken with my slightly better than mediocre tokina 24-200 AT-X zoom which distorts at almost every focal length but PS won't really flatten them out properly. Javier __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html