Archived posting to the Leica Users Group, 1997/11/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]- ------ =_NextPart_000_01BCF2F2.C16FFA80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Well, much as it pains me to admit EVERYTHING invented by Zeiss isn't perfect, any retrofocus lens will simply NOT perform to the same = standard as a REALLY GREAT non-retrofocus lens. The difference will be minute, = but it will be there.=20 But there is one very big disadvantage with non-retrofocus lenses. They = have a big vignetting problem. The only way round this is to have a ND = center filter, which corrects this but it costs two stops. So = effectively the lens is tow stops slower. Example: the 16mm Hologon for = Contax. Retrofocus lenses on the other hand do not have this problem. - ------ =_NextPart_000_01BCF2F2.C16FFA80 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IgoGAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEkAYAEAIAAAEAAAAQAAAAAwAAMAIAAAAL AA8OAAAAAAIB/w8BAAAAYQAAAAAAAACBKx+kvqMQGZ1uAN0BD1QCAAAAAGxlaWNhLXVzZXJzQG1l amFjLnBhbG8tYWx0by5jYS51cwBTTVRQAGxlaWNhLXVzZXJzQG1lamFjLnBhbG8tYWx0by5jYS51 cwAAAAAeAAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAIgAAAGxlaWNhLXVzZXJzQG1lamFjLnBh bG8tYWx0by5jYS51cwAAAAMAFQwBAAAAAwD+DwYAAAAeAAEwAQAAACQAAAAnbGVpY2EtdXNlcnNA bWVqYWMucGFsby1hbHRvLmNhLnVzJwACAQswAQAAACcAAABTTVRQOkxFSUNBLVVTRVJTQE1FSkFD LlBBTE8tQUxUTy5DQS5VUwAAAwAAOQAAAAALAEA6AQAAAB4A9l8BAAAAIgAAAGxlaWNhLXVzZXJz QG1lamFjLnBhbG8tYWx0by5jYS51cwAAAAIB918BAAAAYQAAAAAAAACBKx+kvqMQGZ1uAN0BD1QC AAAAAGxlaWNhLXVzZXJzQG1lamFjLnBhbG8tYWx0by5jYS51cwBTTVRQAGxlaWNhLXVzZXJzQG1l amFjLnBhbG8tYWx0by5jYS51cwAAAAADAP1fAQAAAAMA/18AAAAAAgH2DwEAAAAEAAAAAAAAAkl8 AQSAAQAXAAAAUkU6IFJldHJvZm9jdXMgV2hpbXNleQAjCAEFgAMADgAAAM0HCwARAAAAMgAIAAEA KwEBIIADAA4AAADNBwsAEQAAAC8AAwABACMBAQmAAQAhAAAAMTBDOTQ0OUMxNjVGRDExMUE3OEMw MDYwMDg1MkFCQzEA+QYBA5AGACwKAAAhAAAACwACAAEAAAALACMAAAAAAAMAJgAAAAAACwApAAAA AAADAC4AAAAAAAMANgAAAAAAQAA5AABTSAsl87wBHgBwAAEAAAAXAAAAUkU6IFJldHJvZm9jdXMg V2hpbXNleQAAAgFxAAEAAAAWAAAAAbzzJQtAnETJEV8WEdGnjABgCFKrwQAAHgAeDAEAAAAFAAAA U01UUAAAAAAeAB8MAQAAABgAAABuYXRhc2hhQGJ1eWNvbXB1dGVyLmNvbQADAAYQ7F7StQMABxDY AQAAHgAIEAEAAABlAAAAV0VMTCxNVUNIQVNJVFBBSU5TTUVUT0FETUlURVZFUllUSElOR0lOVkVO VEVEQllaRUlTU0lTTlRQRVJGRUNULEFOWVJFVFJPRk9DVVNMRU5TV0lMTFNJTVBMWU5PVFBFUkZP UgAAAAACAQkQAQAAABAHAAAMBwAAPRAAAExaRnVHxGxJAwAKAHJjcGcxMjVyMgxgYzEDMAEHC2Bu kQ4QMDMzDxZmZQ+STwH3AqQDYwIAY2gKwHOEZXQC0XBycTIAAJIqCqFubxJQIDAB0IUB0DYPoDA1 MDQUIfMB0BQQNH0HbQKDAFAD1PsR/xMLYhPhFFATshj0FNCLBxMV5DYRjjIzOBdUoiAHbSBDRRXk Nxp/pxRAG68ctXlyFeQ5EY6vGlAWMR7/A4JHCdFrAoPfDAEg/w5QIi8Dc1QIcCPUuxYxIQ04GmEl nwOCQgdA/nQN4CPUJWEWbBt4BxMdBv8bcCr/HrcslSBVDjAWTiHo/yyUI4kaYTBOJWYslCbnHZG/ ME0olyyUKiYCkQjmOwlv6jA4v2UOMDU56jsBOr//O8k51DvyOl8+Lz3tPW87n/M57xBgMjhDukTR RI9Fmf851EXCRC9H/0e9Rz9Fb0k0fjkOUEyETeFGA03gAoJzqHR5bAeQaAngdAAAQxNQA/BkY3Rs CrFcYVA4YWRqdU9QBRBn7mgFQhYyDAFjCcBQQAMw8HNuZXgXMAewBbAAwMUCc3MAUHNiMhRQT0DS YRPwXGsJ4HALkFAfr1CDCGBQcAuAZU+AdldA/wFAUXsMMFJEG5BVIASgC4CmZ0XRUsZiYRcQZAIg n1OAUyZPsFFwWXEgMU8T/w5QVH9Vj1afAFFX3ACgUk7/Wl9bZk8ED8Bcb11/Xo8OUG9Xz2DvYf9b kzMCghMQYz9UQGmBUXBbkCpQV3AgREkBEGF1KkAgUArAYcEJwGFwaCBGAiFUBOkwEWktD5A4AUBX EG4T62TvUINiCyByCVBwMhag2XAydzRDIRcAcAHQa1J/UZ9of2mGbbBscAUQAjAtK20QA2E6KRBv dZBTdRRiagWQdHWQRGF0/GU6VAQaYW3/bw9wH3Ev/3I3T6Bbgw4haYFYlg5Qc0/NdF5SV2EXASBI W3EEkP9UBB2Rd294f3mPeptW73uflw+Qh1AI0GIKsHQ4Z9p/D1Rj8H2ffqaH4H+wC1B53i9tIHqQ CxGAJXNUBBuR/4Evgj+DT3qfcj+JT4pfi2R/dbJ1VHaJINCNr1Evh4Q5h5F/ko+YgERvY3UHgL8C MAXQbOA34xMQONB2AlFgIHtVbmuWARXSTvouBmBrFuA34ZaylhCWUPuPMQGAbnYQAGAJ8GuAmuB3 AgFTwHwyZQDwmuBPYHBJPGBcdgiQd2sLgGR/HsCgggTwB0AQYBQQCqBn748CW2Kh5QIQbwVCFyES 8h12oG0LUXagHQA6XFz1dOBvbMFtbRADEAeQpJAmTQ3gA2BzbwGAIE/XASAN4J/QXKZGRQDAAxD6 LmlQdJ2wFxCWUFMBhVL2eAFAnuFuT7A40KfkbBSeY5xREwIAgAWQbHZfgf9ksA5wU8CqcgGQACCr AqDR/5shAcGqcRbgD3AAAGSwDND5AZAgLpukqoYOUKsiKkD/lqCrn6yvrb8PwGSwBYGvX9uwb7F/ bB7AZLBsrx+z33205Smt7DAQsr+3n7TUYvwgKAKRuL+qsxpgtm+7L/+8P71PquAdkL6Sq2+//8EP /63sG5C+n8QfxS/GP6rgIND/wx/Ir8m/ysQK+ahCzYKWDxOXH5ite1cS8mJrbXJrzJMgX5tgAxB2 gWHCfYWAbCwgbQ5wbQD1aSAga6AgCrALgAQgB4BIIHRv1gBkbdZBRQBWRVJZVEhJTjpH1jBuhbAC MAmAIGIweSBaZQQCBABuJ750CoXPhNBP0V/SZnugQP+i8HYx1aAAcNjgONDScKYAv5rhBCBPgAYx A/DVgCAAkOOkAdjgTk9U1mDdQVOx/dbydE+w30ClAODRAZCe8A8LEQqF1hG1MFJFQUw8TFkjcOKB 3+ATUG4t+d4NLiApEODBW5ABIKkh9m6mgN70YhOA11CrMHag/dWgYoUwCoXWQeWm4LE40P/kgNm/ 2s/b39zjm/IEAAmAX5vybDDgsABQnAFkAkBtCDYzOQ+wODU0M7+qM9QynuHUyQqFCoVChTB75+TZ USACIBOAf9HY4GL30pDk4WQwZOyQAjBssOWC/+Cw40/ewQeQ5IDksQKR6//57Q00INjgFuBr0bUw 8bK9oIBnU0ACQFuiF3BvAmD/o/D0Y/ER35GLcN3hCGDuoR/gsPDx8PHXAfclTkQgf6aA2IEFwIyw KkAEkNWgd//6UNXhBaE40OoA+qH6Uuahb9YyBaBPUPqhd9cQT1Bv+nDkcVPXEAERdjFrwd+Rf+Cy 3rP6kwfg/tPfQAkAd/MEkOSARXilAAtQ9K/1v/Ht0DYgOgKPA5/20eCj1RpQbaUQSDhBZxDg+/DH 4EAdABDhYXgu6GYE//8GD3TA4cV/sPN98RHgo6Mg/6kR9xHuoWlQ8wGjMPcj+kMn+IYaEOhmfQAQ wAMAEBAAAAAAAwAREAEAAAADAIAQ/////0AABzDwNZmcJPO8AUAACDDwNZmcJPO8AQsAAIAIIAYA AAAAAMAAAAAAAABGAAAAAAOFAAAAAAAAAwACgAggBgAAAAAAwAAAAAAAAEYAAAAAEIUAAAAAAAAD AAWACCAGAAAAAADAAAAAAAAARgAAAABShQAAtw0AAB4AJYAIIAYAAAAAAMAAAAAAAABGAAAAAFSF AAABAAAABAAAADguMAADACaACCAGAAAAAADAAAAAAAAARgAAAAABhQAAAAAAAAsAL4AIIAYAAAAA AMAAAAAAAABGAAAAAA6FAAAAAAAAAwAwgAggBgAAAAAAwAAAAAAAAEYAAAAAEYUAAAAAAAADADKA CCAGAAAAAADAAAAAAAAARgAAAAAYhQAAAAAAAB4AQYAIIAYAAAAAAMAAAAAAAABGAAAAADaFAAAB AAAAAQAAAAAAAAAeAEKACCAGAAAAAADAAAAAAAAARgAAAAA3hQAAAQAAAAEAAAAAAAAAHgBDgAgg BgAAAAAAwAAAAAAAAEYAAAAAOIUAAAEAAAABAAAAAAAAAB4APQABAAAABQAAAFJFOiAAAAAAAwAN NP03AACbZA== - ------ =_NextPart_000_01BCF2F2.C16FFA80--