[rollei_list] Re: WTB: SL66 thingies
- From: Jerry Lehrer <jerryleh@xxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Sun, 21 May 2006 19:01:05 -0700
Peter,
Yeah, you do 99.5 for say 11 air to glass surfaces and you
end up with a number that is not quite so large.
BTW, you should tell Eric that you drive a La Salle, not a
DeSoto!
Jerry
"Peter K." wrote:
> OK Eric. I guess with your vast knowledge of the optical world you
> must be right. I am just a poor soul who only uses cameras. ;-) Did
> not realize you were so experienced in optical design. Peter KOn
> 5/21/06, Eric Goldstein <egoldste@xxxxxxxxx> wrote:
>
> Modern coatings pass 99.5+%... no longer an issue...
>
> You're livin' in the past, dude... Now let's drop the top on
> the
> DeSoto and go for a little spin... ;-)
>
> Eric Goldstein
>
>
> On 5/21/06, Peter K. <peterk727@xxxxxxxxx> wrote:
> > And more air to glass surfaces can be interpreted as more
> problematic too.
> >
> >
> > On 5/20/06, Eric Goldstein <egoldste@xxxxxxxxx> wrote:
> > >
> > Ordinary more elements means more degrees of freedom means
> higher
> > order corrections, but as these are two entirely different
> designs,
> > one retrofocus, we are comparing apples and orangutans...
> >
> > Eric Goldstein
> >
> > --
> >
> > On 5/20/06, Peter K. <peterk727@xxxxxxxxx> wrote:
> > >
> > > The Planar on your 2.8E is a 5-element lens and the SL66
> a 7-element lens.
> > > Technically with less elements the 2.8E Planar should at
> least equal or
> > > ourperform the SL66 lens, but I would tend to think the
> more modern design
> > > of the SL66 lens compensated for the additional
> elements, so it is
> > unlikely
> > > you will see a difference unless you go to a print of
> about 40x40.
> > >
> > > Peter K
> > >
> > >
> > > On 5/19/06, Richard Sintchak < rich815@xxxxxxxxx> wrote:
>
> > > >
> > > >
> > > > I'm having a hard time distinguishing whether my SL66
> 80/2,8 Planar is
> > any
> > > better or worse than my 80/2.8 Planar on my Rolleiflex
> 2.8E TLR. Then
> > again
> > > I highly suspect they are identical.
> > > >
> > > > Richard S.
> > > >
> > > >
> > > >
> > > > On 5/19/06, Jeff Dilcher < dilcher@xxxxxxxxxxxxxxx >
> wrote:
> > > > >
> > > > >
> > > > > My 80mm lens has a lens hood. Unfortunately, some
> of the
> > > > > non glare "coating" on the inside of the lens hood
> has peeled
> > > > > off, leaving a shiny subsurface visible. I haven't
> used it
> > > > > much because I am afraid the glare from the shiny
> areas will
> > > > > defeat the purpose of the lens hood!
> > > > >
> > > > > If you want to start some interpersonal disputes,
> let me hang
> > > > > this question out there-
> > > > >
> > > > > Do the lenses created for the SL66 produce sharper
> images than
> > > > > the built in lenses on the TLR Rolleis?
> > > > >
> > > > > I wonder if anyone might have a strong opinion?
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > On Fri, May 19, 2006 at 10:12:47AM -0400, Dan Kalish
> wrote:
> > > > > > >
> > > > > > > Date: Fri, 19 May 2006 00:55:36 -0400
> > > > > > > From: Craig Roberts < crgrbrts@xxxxxxxxxxx >
> > > > > > > Subject: [rollei_list] WTB: SL66 thingies
> > > > > > >
> > > > > > > Good morning fellas.
> > > > > > >
> > > > > > > I'm still looking for the elusive 80 - 150 lens
> hood for my quaint
> > old
> > > > > > > SL66. Anybody got a spare, please? By the way,
> any other SL66
> > fans
> > > > > > > around? We're getting as scarce as the lens
> hoods.
> > > > > > >
> > > > > > > Many thanks!
> > > > > > >
> > > > > > > Craig
> > > > > > > Washington, DC
> > > > > >
> > > > > > I'm a SL66 fan. I subscribe to this list for
> those rare occasions
> > when
> > > > > > something about an SL66 is posted. Sometimes a
> new link is
> > worthwhile. I
> > > > > > don't have enough discipline to ignore everything
> else -- the
> > interpersonal
> > > > > > disputes are just too funny to ignore.
> > > > > >
> > > > > > Dan
> ---
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>
>
>
> --
> Peter K
> Ó¿Õ¬
>
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