Archived posting to the Leica Users Group, 2013/04/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]You should tell Leica this because just in case they decide to get into the premium lens making biz they should know these things! On 4/6/13 8:42 AM, "Marty Deveney" <benedenia at gmail.com> wrote: > Yes, but the lowest limit of wobble in a bayonet mount plus the same in a > collapsible mount is still more wobble than in a rigid lens. The two > samples f the 90 macro I've tested showed more optical decentring than > rigid 90 lenses. > > Marty > > > On Saturday, 6 April 2013, Frank Dernie wrote: > >> There is no reason why a well engineered collapsible mount with a >> reasonable diameter bayonet lock inside, like the 90mm f4 macro, should be >> any more wobbly than a bayonet fixing lens to camera junction. Whilst >> expending between collapsed and locked , maybe - IME some are, some aren't >> - but when locked no reason to be wobbly at all. >> f4 -is- slow... >> FD >> >> On 5 Apr, 2013, at 23:47, Marty Deveney <benedenia at >> gmail.com<javascript:;>> >> wrote: >> >>> Collapsible mounts are inherently wobbly, and f4 is much too slow... >> >> >> _______________________________________________ >> 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 -- Mark William Rabiner Photography http://gallery.leica-users.org/v/lugalrabs/