[pure-silver] Re: Kodak Enlarging Lens
- From: <genej2@xxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 27 Sep 2005 12:25:44 -0400
Jerry Lehrer once recommended that very lens as an excellent 2 1/4 enlarging
lens. "the one with the large knurls". Not surprised at all.
I've been shooting with an ancient 12 inch Kodak Anastigmat in a barrel in
front of a Packard. absolutely excellent. Even or especially wide open.
Amazing. kodak did good lenses.
>
> From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
> Date: 2005/09/27 Tue AM 03:14:01 EDT
> To: "Pure-Silver Free" <pure-silver@xxxxxxxxxxxxx>
> Subject: [pure-silver] Kodak Enlarging Lens
>
> Last week I picked up a Kodak Enlarging Ektar at one of
> the local camera sales. I wanted to test it against my
> Schneider Componon. The lens was in excellent conditioni and
> was a late one. The date code indicates it was made in 1958,
> Kodak discontinued consumer lenses sometime in the early or
> mid 1960's. Its a 75mm, f/4.5 lens. My main lens for 2-1/4 x
> 1-1/4 is a Schneider Componon 80mm, f/5.6, one of the older
> chrome barrel type. The serial number indicates it was built
> sometime between 1961 and 1963. I've had this lens for a
> long time and its been quite satisfactory.
> My preliminary test was to examine both film grain and
> image using a high magnification grain focuser with the
> enlarger set for about 8x10 prints. Result: the two are very
> close but I think the old Kodak lens may be slightly better.
> I was surprized that the effect of diffraction blur is
> visible when going from f/8 to f/11. The effect is slight
> but unmistakable when examining the grain. The difference is
> greater for the Kodak lens suggesting it is has somewhat
> higher resolution.
> The Schneider lens is of the Plasmat type, six elements
> in four groups, the Kodak lens is a Heliar, five elements in
> three groups. In principle the Plasmat should have somewhat
> better performance at the margins but both lenses are
> operating will within their angular field limits.
> I can't say I am surprized. The Kodak Enlarging Ektar
> series was intended for high quality color printing and the
> lenses are very well corrected, its just interesting to see
> just how good this old timer is.
> More when I do some actual printing with it.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
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Be Just And Fear Not
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