Archived posting to the Leica Users Group, 2010/06/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Henning, Of course; but I can still see some significant areas where a well-designed and optically good fisheye has advantages. Marty On Wed, Jun 2, 2010 at 3:52 PM, Henning Wulff <henningw at archiphoto.com> wrote: > The interpolation of even an almost optically perfect fisheye lens will > introduce increasingly reduced performance into the corners. The optical > compromises that are part of the wideangle zoom are not in particular in > the > area of distortion control, as that lens has significant software > correction > done on the images by the camera or raw conversion software. This, by the > same argument as above, also introduces some reduction in performance, but > to a much lesser degree than that introduced by correcting a fisheye image. > > I've corrected the image from a 17mm fisheye that I use on my Leicas and a > 15mm fisheye for my full frame Canon. They produce acceptable wideangle > shots, but neither is close to the best I can get with rectilinear lenses, > whether fixed or zoom. This might be due to deficiencies in the fisheyes, > but judging the rectified image from an as yet unseen fisheye lens to be > superior to a known excellent wideangle zoom is rather a stretch. > > >> The best thing about this is that you can make the images rectilinear >> in post processing and end up with a wide angle of better optical >> quality than the zoom at the wide end, because the fisheye does not >> have all the optical compromises built into it to try to keep >> distortion down. ?It may even come with a plug-in to do this. >> >> Marty >> >> On Wed, Jun 2, 2010 at 7:12 AM, philippe.amard <philippe.amard at sfr.fr> >> wrote: >>> >>> ?Not a fish eye Nathan - just 1mm narrower than your 7-14 at the wide end >>> ;-) >>> ?But stealthier >>> ?DK what the guys at DPreviews were thinking of ... >>> ?ph >>> >>> ?Le 1 juin 10 ? 23:28, Nathan Wajsman a ?crit : >>> >>>> >>>> ?Very real! After my trip to the US last week I have 408 images to work >>>> on, >>>> ?after culling the losers on my laptop during the trip. All taken with >>>> the >>>> ?GF-1. But the fisheye is of little interest to me. Too specialized to >>>> spend >>>> ?this kind of money. >>>> >>>> ?Nathan >>>> >>>> ?Nathan Wajsman >>>> ?Alicante, Spain >>>> ?http://www.frozenlight.eu >>>> ?http://www.greatpix.eu >>>> ?http://www.nathanfoto.com >>>> >>>> ?Books: http://www.blurb.com/bookstore/search?search=wajsman&x=0&y=0 >>>> ?PICTURE OF THE WEEK: http://www.fotocycle.dk/paws >>>> ?Blog: http://www.fotocycle.dk/blog >>>> >>>> >>>> >>>> >>>> >>>> >>>> ?On Jun 1, 2010, at 5:16 PM, Kyle Cassidy wrote: >>>> >>>>> ?Dang, this thing's turning into a real camera system, which makes >>>>> ?decisions of how to spend money a lot more complex now..... >>>>> >>>>> ?Philippe posted: >>>>> >>>>> >>>>> ?http://dpreview.com/news/1006/10060101Pana8mmFisheye.asp >>>>> >>>>> >>>>> ?_______________________________________________ >>>>> ?Leica Users Group. >>>>> ?See http://leica-users.org/mailman/listinfo/lug for more information >>>>> >>>> >>>> >>>> ?_______________________________________________ >>>> ?Leica Users Group. >>>> ?See http://leica-users.org/mailman/listinfo/lug for more information >>>> >>> ?NO ARCHIVE >>> >>> ?_______________________________________________ >>> ?Leica Users Group. >>> ?See http://leica-users.org/mailman/listinfo/lug for more information >>> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > -- > > ? * ? ? ? ? ? ?Henning J. Wulff > ?/|\ ? ? ?Wulff Photography & Design > ?/###\ ? mailto:henningw at archiphoto.com > ?|[ ]| ? ? http://www.archiphoto.com > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >