Archived posting to the Leica Users Group, 2005/03/11[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Most zooms are slow, especially zooms starting at 12mm, and people seem to want to buy zooms :-) I have a Canon 300D with lenses from f1.8 (20mm) to f1.8 (50mm) Steve -----Original Message----- From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of Peter Klein Sent: 11 March 2005 21:36 To: firstname.lastname@example.org Subject: Re: [Leica] RD-1 users: Light loss with fast lenses? Thanks, Henning and B.D. I find it interesting that the fastest lenses specifically designed for DSLRs so far have been f/2, and most are slower. Why? Is it just marketing--they guys with spreadsheets have decided that "the public" wants mostly slow zooms, plus or two f/2 or 2.8 macros? Or are there some genuine technical reasons why lenses faster than f/2 are a problem for digital as things stand now?