[rollei_list] Re: An Embarrassing Omission by the List Owner
- From: "Eric Goldstein" <egoldste@xxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Wed, 7 Nov 2007 18:55:30 -0500
This is definitely true, but even when these lenses were new, or now
when they are spotless/hazeless, they do not have the same level or
type of contrast as modern optics. The comparison is easy to see. For
instance, I have a Sonnar 38/2.8 on a Contax T2 which just has a
ridiculous amount of contrast, so much so that printing the lens is
difficult. You will never get that from a pre-war lens...
Eric Goldstein
On 11/7/07, Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
>
> ----- Original Message -----
> From: "Eric Goldstein" <egoldste@xxxxxxxxx>
> To: <rollei_list@xxxxxxxxxxxxx>
> Sent: Wednesday, November 07, 2007 7:25 AM
> Subject: [rollei_list] Re: An Embarrassing Omission by the
> List Owner
>
>
> > The context of what low contrast means pre and post war is
> > important
> > to keep in mind...
> >
> > Prewar, Sonnars were famous for their "bite" with
> > relatively few glass
> > to air surfaces but by post-war standards we would not
> > view them as
> > having good contrast. And yes Ed prewar, all fine lens
> > makers apotized
> > for resolution and not contrast, because contrast sans
> > coatings could
> > only be taken so far. This is why the Zeiss paper I
> > mentioned in a
> > previous post was such a turning point not only for that
> > marque but
> > most others who followed suite... the day contrast became
> > king...
> >
> >
> > Eric Goldstein
> >
> More, shining a flashlight through a lens will show up
> the sort of haze I just wrote about. It may be difficult to
> see just by looking through the lens. Even a light coating
> will reduce contrast quite a bit, more than it looks like it
> could.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
> ---
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