Re: [Leica] Fw: Summitar, Elmar, Jupiter

["Jason Hall" <JASON@jbhall.freeserve.co.uk>]

Hi Stan

You're more likely to get a response if you ride a hand built exotic
alloy tubed bicycle with Italian bits fitted.

Which version of the Summitar were you using?  Hexagonal convex
aperture blades or the more rounded flat bladed version?  I have had
both, got rid of the latter and kept the hex because the glass was in
better condition, now I'm convinced that I had better results from the
one I ditched :-(  I suspect there is a lot of scope for variation
from one sample to another with these old collapsibles, due mostly to
age.

I have a 1980 Jupiter 12 which is certainly on a par with my Summitar,
I'm not convinced its "better" but I haven't used it enough to be
sure.  I also have a Jupiter 9 (for sale if anyone wants it) that wont
focus properly, though it seems ok stopped down.

I usually find myself wishing Id used an R with modern-ish glass
whenever I shoot some film with these lenses.

Jason



- ----- Original Message -----
From: "Stanislaw B.A. Stawowy" <watteau@krakow.neurosoft.net>
To: "Leica Users Group" <leica-users-digest@mejac.palo-alto.ca.us>
Sent: Tuesday, November 07, 2000 12:20 PM
Subject: [Leica] Fw: Summitar, Elmar, Jupiter


> I will be reposting this as long as aomeone write
> a answer. And if someone thinks about killfile,
> I will dig out from there and shout and be ghastly :-)
>
> Seriously: Doesn't anyone have anything to add?
> Better discuss about cowshit?
>                                 St.
>                      (Stanislaw B.A. Stawowy)
>               http://www.geocities.com/Stanislaw_Stawowy
>
> ----- Original Message -----
> From: "Stanislaw B.A. Stawowy" <watteau@krakow.neurosoft.net>
> To: "Leica Users Group" <leica-users-digest@mejac.palo-alto.ca.us>
> Sent: Monday, November 06, 2000 12:00 PM
> Subject: Summitar, Elmar, Jupiter
>
>
> > Hello friends!
> > I recently tested these three lenses:
> > Coated Summitar 2/50 collapsible
> > Coated Industar 22 3.5/50 collapsible (is this a Elmar copy?)
> > Coated Jupiter 3 1.5/50 - Sonnar copy
> >
> > Results are somewhat strange for me:
> >
> > At f/2 Jupiter was way ahead of Summitar
> > At f/4 Industar/Elmar outperformed (wide open!) both
> > Jupiter and Summitar, Jupiter took second place.
> > At f/5.6 all lenses performed equally well
> > At f/8 Summitar was best, Jupiter and Industar were worse,
> > but still acceptable quality
> >
> > At similar scale, Jupiter 12 (2.8/35, recent production)
> > outperformed all these lenses from f/4 up to f/8
> >
> > Please comment this. I hope both Marc Small and Erwin Puts
> > will have something to say about optical qualities of these
lenses.
> >
> >
> >                                 St.
> >                      (Stanislaw B.A. Stawowy)
> >               http://www.geocities.com/Stanislaw_Stawowy
> >
> >
>
>