tag:blogger.com,1999:blog-1320126156594375642.post4703933044523878689..comments2024-03-27T11:02:08.037-05:00Comments on LEICA Barnack Berek Blog: THE WORLD’S LONGEST TELEPHOTO LENSESLEICA Barnack Berek Bloghttp://www.blogger.com/profile/09055435560407011075noreply@blogger.comBlogger16125tag:blogger.com,1999:blog-1320126156594375642.post-83792776026953371582013-01-24T09:32:43.135-06:002013-01-24T09:32:43.135-06:00I respectfully disagree. To gain a better underst...I respectfully disagree. To gain a better understanding of optical instruments in general will inevitably lead to a better understanding of Leica as well.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-41879173711255441002013-01-24T07:14:32.804-06:002013-01-24T07:14:32.804-06:00I don't see much sense in writing about telesc...I don't see much sense in writing about telescopes because Leica is not involved in their manufacture.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-28612286720714680902012-11-04T13:41:25.278-06:002012-11-04T13:41:25.278-06:00Of course the lens is available. How else did the...Of course the lens is available. How else did the Sheikh obtain it. It is not officially part of what Leica is offering in their list of goods, but as the 2 million cost to the Sheikh indicates, pass on another 2 million, and the lens is yours. The price for the deluxe version is available upon request.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-39932878375169245872012-11-04T13:34:46.051-06:002012-11-04T13:34:46.051-06:00But the lens is not available in either version.But the lens is not available in either version.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-48100028703015752502012-11-04T11:21:53.190-06:002012-11-04T11:21:53.190-06:00Certainly not a magnum, and I think even a regular...Certainly not a magnum, and I think even a regular 750ml bottle might be too big. But you could always use a 1/3 liter bottle, like what Trockenbeerenausleses or Eiswein usually come in. In addition, there are also the so-called piccolo champagne bottles. Also, let's not forget that the lever/handle is on both sides of the lens, so ti should be possible to store the wine on one and the beer on the other side. But the double fridge is only available on the deluxe model. The others have only one fridge and just a storage compartment on the opposite side;-)LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-37465427151664780702012-11-04T11:11:33.689-06:002012-11-04T11:11:33.689-06:00Is it big enough to hold a bottle wine instead?Is it big enough to hold a bottle wine instead?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-3375161261666818492012-10-31T11:05:10.309-05:002012-10-31T11:05:10.309-05:00One answer I received was indicating quite a diffe...One answer I received was indicating quite a different purpose. It read <br />"There's a built in fridge and that's the handle to open the fridge to get the beers out."<br /> LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-35377682706213877762012-10-30T11:37:49.948-05:002012-10-30T11:37:49.948-05:00I should add that the known specs for the E-ELT in...I should add that the known specs for the E-ELT indicate that it will be 12 times more sensitive than anything else currently in use. That is an increase of 3 1/2 stops. Considering that the large binocular telescope has a maximum aperture of f/1.142, that would bring the E-ELT to approximately f/0.3. That in turn indicates a focal length of approximately 12 metersLEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-11798229433804797882012-10-30T10:06:41.112-05:002012-10-30T10:06:41.112-05:00I wish there was an editing function for the comme...I wish there was an editing function for the comment section.<br /><br />Make that 'find out about...'LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-38737025816405974572012-10-30T10:05:26.287-05:002012-10-30T10:05:26.287-05:00I put out that question over the internet. Nobody...I put out that question over the internet. Nobody really knows (other than some people at Leitz) and very little is known about the lens. The general consensus is that it is not a lever but a handle. This is actually installed on both sides of the lens.<br />I will definitely fins out about it on my next visit to Solms.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-7775881433241835832012-10-27T09:46:53.919-05:002012-10-27T09:46:53.919-05:00I have no idea. I'll let you know once I find...I have no idea. I'll let you know once I find out.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-61317737821291102392012-10-26T08:57:01.145-05:002012-10-26T08:57:01.145-05:00I wonder what the lever is on the side of the 1600...I wonder what the lever is on the side of the 1600mm Apo-Telyt?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-81062339889746034632012-10-25T11:37:15.975-05:002012-10-25T11:37:15.975-05:00Well, we know that the telescope's main mirror...Well, we know that the telescope's main mirror has a diameter of 39 meters. With a focal length of 39 meters, that would yield a maximum aperture of f/1. Looking at some of the other large telescopes throughout the world, they all seem to have a focal length under 20 meters. Taking a 20 meter focal length would yield a maximum aperture of f/0.51. With other words, this telescope will be amazingly fast, especially if one considers that the fastest production lens for photography is the 50mm f/0.95 Leica Noctilux.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-41523425554808109202012-10-25T10:37:09.915-05:002012-10-25T10:37:09.915-05:00Could you give us a guess as to the speed of the E...Could you give us a guess as to the speed of the E-ELT, to have some comparison to other large telescopes?Anonymoushttps://www.blogger.com/profile/15469641643604325593noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-75275623534513114072012-10-22T09:56:45.494-05:002012-10-22T09:56:45.494-05:00Solid mirrors have size limitations. It was thoug...Solid mirrors have size limitations. It was thought that the 5 meter mirror of the Hale telescope on Mount Palomar was the limit. But the BTA-6 telescope in Russia has a 6 meter mirror. That unit has been plagued by considerable flaws ever since it was first built. The reason for these limitations is weight and the fact that the mirror will actually distort under its own weight. With segmented mirrors the entire mirror is divided in a multitude if hexagon shaped smaller units which, when assembled, will form a large mirror functioning as a single unit. The individual segments are relatively thin and therefore quite light. Their shape is computer controlled via a very sophisticated system which actually reshapes the individual segments to the highest degree of accuracy. This way it is also possible to compensate for atmospheric disturbances which ultimately makes these telescopes as sharp and accurate as orbital telescopes like the Hubbel telescope, for instance. The E-ELT will use several laser beams to probe the atmosphere for any possible disturbances to an even higher degree of accuracy and compensate for it accordingly. It will be the most amazing telescope ever built. LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-54842730389343301432012-10-22T09:15:33.252-05:002012-10-22T09:15:33.252-05:00Very interesting, especially the data on the teles...Very interesting, especially the data on the telescopes in terms of focal length and speed. I have never seen astronomical telescopes looked upon in those terms.One question, what is the difference between a solid and a segmented mirror?Anonymousnoreply@blogger.com