Dan Fromm
15-Sep-2004, 06:32
Last weekend I came by a pair of 240/9 G-Clarons in barrel. After I cleaned them up I looked at them and was surprised to see too few reflections for the lenses to be plasmat types.
Schneider's archive http://www.schneiderkreuznach.com/archiv/archiv.htm has two .pdfs on G-Clarons. The older, dated 7/76, describes a 6/2 double anastigmat type. The younger, dated 5/82, describes the well-known 6/4 plasmat type. A Google search found one reference to the older version, in one of Michael Gudzinowicz' lists of lenses.
Both types have about the same claimed coverage at f/9 and f/22, and both were offered in the same set of focal lengths.
My lenses serial numbers, according to te www.schneideroptics.com age of lenses page, were issued between 10/67 and 11/68. Each of my lenses' cells shows two strong and two faint reflections. 6/2, sure enough..
I shoot 2x3, so can't really test my new old lenses. Will someone please report on how well they perform? That Schneider changed designs makes me think that the older design must somehow fall short ... And does anyone know when the G-Claron was introduced?
Thanks,
Dan
Schneider's archive http://www.schneiderkreuznach.com/archiv/archiv.htm has two .pdfs on G-Clarons. The older, dated 7/76, describes a 6/2 double anastigmat type. The younger, dated 5/82, describes the well-known 6/4 plasmat type. A Google search found one reference to the older version, in one of Michael Gudzinowicz' lists of lenses.
Both types have about the same claimed coverage at f/9 and f/22, and both were offered in the same set of focal lengths.
My lenses serial numbers, according to te www.schneideroptics.com age of lenses page, were issued between 10/67 and 11/68. Each of my lenses' cells shows two strong and two faint reflections. 6/2, sure enough..
I shoot 2x3, so can't really test my new old lenses. Will someone please report on how well they perform? That Schneider changed designs makes me think that the older design must somehow fall short ... And does anyone know when the G-Claron was introduced?
Thanks,
Dan