Archived posting to the Leica Users Group, 2009/06/05

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Subject: [Leica] FS: 21/2.8 Elmarit ASPH 6-bit
From: mingthein at gmail.com (Thein Onn Ming)
Date: Fri, 5 Jun 2009 16:06:06 +0800
References: <E833C2C4-23C6-4F12-B504-540788F57FB4@gmail.com> <C64E428F.4F882%mark@rabinergroup.com> <20090605080152.GV5371@jbm.org>

I think you forgot cholesterol content...

On Jun 5, 2009, at 4:01 PM, Jeff Moore wrote:

> 2009-06-05-03:33:35 Mark Rabiner:
>> 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.
>
> There are competing design axes:
>
>   Compactness
>
>   Light Gathering
>
>   Vignettinglessness
>
>   Great Taste
>
>   Less Filling
>
> You can't have all of them, and if you relax one, you can have more of
> the rest.
>
>> It has a Ring-type ultrasonic focusing motor.
>> I like the sound of that!
>>
>> I wish I knew what kind of rings though!
>
> Maybe from Mordor.  But probably from Nibelung.
>
>  -Jeff
>
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> Leica Users Group.
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THEIN Onn Ming
*photohorologer ming at www.mingthein.com
www.flickr.com/mingthein







In reply to: Message from mingthein at gmail.com (Thein Onn Ming) ([Leica] FS: 21/2.8 Elmarit ASPH 6-bit)
Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] FS: 21/2.8 Elmarit ASPH 6-bit)
Message from jbm at jbm.org (Jeff Moore) ([Leica] FS: 21/2.8 Elmarit ASPH 6-bit)