Archived posting to the Leica Users Group, 2007/08/02

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Subject: [Leica] New Summarit lenses
From: hoppyman at bigpond.net.au (G Hopkinson)
Date: Thu Aug 2 23:13:22 2007
References: <380-22007842232612338@M2W023.mail2web.com><000a01c7d562$0d9442c0$6601a8c0@asus930><200708030032.l730WKiZ092604@dragonsgate2.imagecraft.com> <124ABDC8-1E09-4DC7-AD11-4869BD8B77EB@comcast.net>

The German info suggests that these are symmetrical designs, I think? So 
different to the bigger brothers. Much, much easier to
reduce aberrations at the more modest maximum aperture, of course, as you 
say. The concept looks good, doesn't it? A very compact
lens set. Compact and reasonably affordable is their raison d'?tre. Good for 
Leica and all rangefinder folks. Who would have thought
that we would be seeing these new compact M lenses from Leica and Zeiss 
designs? For this market, if the prices are similar (to the
ZM lenses made by Cosina) I can see these having bonus desirability with the 
Made in Germany tag and that's irrespective of any
actual performance comparisons.

Cheers
Hoppy

-----Original Message-----
Subject: Re: [Leica] New Summarit lenses

Isn't that essentially  what Erwin said they did with the 40mm 2.4  
Summarit for the Minilux?  It performs well because wide open, its  
already a half stop down, if that's not an oxy-moron phrase!

Tom

On Aug 2, 2007, at 5:20 PM, Richard wrote:

> I bet they just use the existing F2 lens design and make the  
> aperture opening not as big and the glass thinner or something :-)
>
> Sort of like in chip manufacturing, the 3 GHz and and 1.5 Ghz and  
> everything in between are from the same wafers. If the chip passes  
> the 3 Ghz tests, then it's a 3 Ghz chip :-)
>


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In reply to: Message from telyt at earthlink.net (telyt@earthlink.net) ([Leica] New Summarit lenses)
Message from hoppyman at bigpond.net.au (G Hopkinson) ([Leica] New Summarit lenses)
Message from richard-lists at imagecraft.com (Richard) ([Leica] New Summarit lenses)
Message from tomschofield at comcast.net (Tom Schofield) ([Leica] New Summarit lenses)