Archived posting to the Leica Users Group, 2009/06/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I was just looking up 50 1.4's as I saw the Sigma And its filter size is 77. I thought I was looking at a 14 2.8 The Nikons is of course using a 52mm filter size and the Pentax a 49mm filter size. The Canon 50 1.4 is not its classic 55 mm canon filter size but 58mm. I'd love to know what goes into this Sigma lens. 500 bucks it cost. I would love to read Erwin's take on what a 77mm filter size on an optic which should be the single easiest to design does. I would guess no vignetting issues at all. Just a guess. http://www.dpreview.com/news/0808/08081802sigma50review.asp It has a Ring-type ultrasonic focusing motor. I like the sound of that! I wish I knew what kind of rings though! Newton? Lord of? Van Allen? Ring Cycle? Ring around the collar? Mark William Rabiner > From: Thein Onn Ming <mingthein at gmail.com> > Reply-To: Leica Users Group <lug at leica-users.org> > Date: Fri, 5 Jun 2009 10:38:48 +0800 > To: Leica Users Group <lug at leica-users.org> > Subject: Re: [Leica] FS: 21/2.8 Elmarit ASPH 6-bit > > I'm surprised how quickly one gets used to the size though. The Nikon > AFS 50/1.4 I was using as my 'small' lens previously is larger than > an 0.95 noct...and the 24-70/2.8 I usually used is about 20cm long > with the hood on. Now the 35 cron asph seems about right sized to me... > > On Jun 5, 2009, at 10:29 AM, Rei Shinozuka wrote: