Archived posting to the Leica Users Group, 2006/02/26

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Subject: [Leica] OT: Bubbles in the Rear Element of 1940' - 1950's Lenses
From: nickbroberts at yahoo.co.uk (Nick Roberts)
Date: Sun Feb 26 15:38:58 2006
 
My f2 post-War East German T Sonnar also has bubbles,
and the performance is excellent.

Nick

--- Ted Grant <tedgrant@shaw.ca> wrote:
> Hi Greg,
> I vaguely re-call from years ago "looking for lenses
> with bubbles" because 
> they signified a better lens. So the theory was in
> those days.
> 
> I had a 50 mm f1.5 on a Contax III with a bubbles in
> the glass and I don't 
> re-call any kind of variations from them in the negs
> and prints.
> 
> Now on a test bench I suppose given lens standards
> of today bubbles maybe a 
> no-no. But at that time 50's 60's bubbles were
> supposed to signify part of 
> the molten glass cooling process and a positive
> marques.
> 
> ted
> 
> Ted Grant Photography Limited
> 1817 Feltham Road
> Victoria BC  V8N 2A4
> 250-477-2156 
> 
> 
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for
> more information
> 



                
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Replies: Reply from msmall at infionline.net (Marc James Small) ([Leica] OT: Bubbles in the Rear Element of 1940' - 1950's Lenses)
 In reply to: Message from tedgrant at shaw.ca (Ted Grant) ([Leica] OT: Bubbles in the Rear Element of 1940' - 1950's Lenses)