Archived posting to the Leica Users Group, 1997/11/28

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Subject: Noctilux and Super Elmar
From: leicas@isham-research.demon.co.uk (Phil Payne)
Date: Fri, 28 Nov 1997 23:37:05 GMT

In message <9711250032.AA02718@mejac.palo-alto.ca.us> Alastair Firkin writes:

> I have a futher question on the Noctilux ...

> Some time ago someone asked what the effect of stopping down the
> Noctilux was on the performance of the lens. The question was never
> answered ...

a) Depth of field increases.

b) It still weighs the same.

Joking aside - contrast is very similar to the Summicron from about f4,
and vignetting ceases gradually - but IMO is still present at f1.4

YMWV.

- --
 Phil Payne