For microchip production, at 1:20 reduction ratio. 9 lens elements in 8 groups, weighs 49.5lbs
Под камеры с кадром 6х7 см.
"S" was used as a code to indicate Special and they are not designed for use at infinity but rather in close-up.
Т.е. на бесконечность оно не работает.
S-Planar f4.0 195mm 9g/8c A correspondent writes: "This was a little gem, and was used for the preparation of microcircuit chips by Monica and had a resolving power of some 1000pairs per mm, and weighed 49.5lb and cost some 500,000Dmarks each."
На ебее такой продавали 14500$, последний раз в 2012г. Будет тебе, яхонтовый, счастье.