tag:blogger.com,1999:blog-1320126156594375642.post1478522345577682573..comments2024-03-27T11:02:08.037-05:00Comments on LEICA Barnack Berek Blog: THE LEITZ (LEICA) GLASS RESEARCH LABORATORYLEICA Barnack Berek Bloghttp://www.blogger.com/profile/09055435560407011075noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-1320126156594375642.post-86278318660134299682020-11-11T10:24:59.890-06:002020-11-11T10:24:59.890-06:00Leicas specifications and tolerances are much tigh...Leicas specifications and tolerances are much tighter than what is commonly considered to be acceptable. For instance, Leica applies a standard of ±0.0002% for the accuracy of the refractive index. This compares to the international standard of ±0.001% as applied by other lens manufacturers. The accuracy of the Abbe number, the measure for dispersion, is ±0.2% for Leica compared to ±0.8% internationally.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-16968830681435271852020-11-11T10:24:23.963-06:002020-11-11T10:24:23.963-06:00Do you know what those specifications are?Do you know what those specifications are?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-77256857371176803412020-11-11T10:23:51.301-06:002020-11-11T10:23:51.301-06:00No. Leica is only purchasing raw glass that has be...No. Leica is only purchasing raw glass that has been made to their specifications in purity and specs.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-60447198505154362532020-11-11T10:23:28.125-06:002020-11-11T10:23:28.125-06:00Isn't that compromising their standards?Isn't that compromising their standards?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-72531769195643821102020-11-11T10:22:59.121-06:002020-11-11T10:22:59.121-06:00They are very tight lipped about that. But one com...They are very tight lipped about that. But one company for sure is Schott and it has also been reported that Leica is getting raw glass from Hoya.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-17591985862350459762020-11-11T10:22:29.047-06:002020-11-11T10:22:29.047-06:00Which are the companies that Leica is purchasing g...Which are the companies that Leica is purchasing glass from?Anonymousnoreply@blogger.com