Archived posting to the Leica Users Group, 2011/12/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Mind you shooting at an equivalent magnification of an 800mm lens without a super rigid tripod is an exercise in futility, IME... Frank >________________________________ > From: James Laird <digiratidoc at gmail.com> >To: Leica Users Group <lug at leica-users.org> >Sent: Tuesday, 13 December 2011, 14:14 >Subject: Re: [Leica] LONG lenses + M9 or M8 > >Absolutely. Try focusing a 400mm Telyt on a micro 4/3 camera on a >distant subject without a tripod. I've been there. Even with a monopod >it's tricky and even if you can get the focus right if the thing moves >you're screwed. And the micros 4/3 has live view, something the M8/M9 >doesn't have so it's even harder. It might be possible with an M with >a lot of trial and error on a static object, a totally static object >and a totally static lens and tripod. Might be fun to try if you have >time to kill though. > >Jim > >On Mon, Dec 12, 2011 at 8:59 PM, Doug Herr <wildlightphoto at >earthlink.net> wrote: >> Richard Man wrote: >> >>>Doug, what do you mean by infinity is a moving target? >> >> A couple of factors: what we think of as infinity might not be optical >> infinity, so that a distant surfer might be short of optical infinity, >> and many long lenses focus beyond infinity in order to allow for thermal >> expansion and contraction. ?W/o TTL viewing focussing a lens this long >> using the M8/M9 back screen is tedious trial-and-error under the best of >> circumstances and might only be useful if the thing you want in focus is >> bolted to the earth. >> >> Doug Herr >> Birdman of Sacramento >> http://www.wildlightphoto.com >> >> >> >> _______________________________________________ >> 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 > > >