Archived posting to the Leica Users Group, 2008/09/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This is a physical specs comparison... Weight: F2.8= 290gm F3.8 = 240gm Filter Size: F2.8= E55 F3.8 = E46 Length: F2.8 = 45mm F3.8= 40.6mm The F3.8 has a screw on hood, the F2.8 is a bayonet. Conclusion... the F3.8 is a bit smaller ( smaller diameter body) , lighter ( by 50gm), shorter ( by 5 mm or 1/5 of an inch) , and slower by 2/3 of a stop. Puts seems inconclusive or not definite in his concllusions about he relative image quality. Not so sure I would swap one for the other....at least it is not clear yet what advantage I would get..... Frank