Archived posting to the Leica Users Group, 2019/10/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I see the little Camera alreay had a WI (FI?) connection to the clouds. Must have been fun to use. As much as my own Retina at the same period :-) Amities Philippe > Le 27 oct. 2019 ? 22:29, Mark Rabiner <mark at rabinergroup.com> a ?crit : > > Cirrus clouds are tricky because just like fence posts you can think you > have one lined in focus but it?s the one next to it. > Stratus clouds you may as well go home or go in to Guess Toe Matic > focusing. Which is how I focused on my Voigtl?nder Vito anyway. > Cumulus are what you are going for. They are well defined no two exactly > alike and are easy to focus on with any kind of rangefinder systems. > Stratocumulus again not good too smooth. > Altocumulus are past infinity so you have to compensate and bring two > lunches. They are "far far away" an optical term. > > > > > -- > > Mark William Rabiner > Photographer > > ?On 10/27/19, 5:05 PM, "LUG on behalf of Mark Rabiner" > <lug-bounces+mark=rabinergroup.com at leica-users.org on behalf of mark at > rabinergroup.com> wrote: > > I've always had a fascination with the infinity symbol ? on my first > camera I got in 1965 with f stops and shutter speeds when I was 12 or 13 > it was a mid 1950's Voigtl?nder Vito BL. I was not sure what to focus it > at infinity on it seemed like it should be a long way away maybe I should > pack a lunch. No hills in the north shore Chicago suburbs to speak of. > There was no internet to look it up there was no one to ask and the > Dewey Decimal System was not doing me any good in the Winnetka and Glencoe > library's. > So I settled on clouds. I decided clouds were infinity. I aimed at > clouds when I adjusted the eyepiece on my camera for years. Decades. > Erwin may have noticed some of my occasional infinity posts on the LUG > and did a thing on what ? (infinity) means in photography on a real level > like how far way is it really. > Turns out its not all that far away you don?t even need to bring your > lunch! > The focal length of your camera times the square root of the hypotenuse > that kind of thing... couple of hundred feet away - piece of cake. > You need to know how to to math though or how to use a slide rule. Or > Geometry. Or trigonometry. No biggie, just way out of my pay grade. > Clouds may be bit fluffy though for accurate focusing but they've all > I've got; on a cloudy day. > > Here's one right next to a Leica M2! > > https://www.35mmc.com/05/04/2019/compact-excellence-a-review-of-the-voigtlander-vito-bl-by-andrew-morang/ > > > > > > -- > > Mark William Rabiner > Photographer > > ?On 10/23/19, 11:15 PM, "LUG on behalf of Paul Roark via LUG" > <lug-bounces+mark=rabinergroup.com at leica-users.org on behalf of lug at > leica-users.org> wrote: > > Don Dory via LUG <lug at leica-users.org> wrote: > >> I will just add that Leica tests every lens and keeps the record for every >> lens produced. The MTF is from real lenses and not some idealized >> computer projection. >> ... > > > Which is unlike most of the companies. In my pre-Leica days, I > became > frustrated returning lenses that focused at different places for the > different edges of the field. I have a mountain ridge at > "infinity" and > clear air where I live. The poor assembly of the middle market > optics was > very obvious and frustrating. We do get something for those prices > we pay. > > Paul > www.PaulRoark.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