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ruilourosa
8-Jun-2023, 15:41
Can anyone chime in and talk a bit about this lens that easy given to me?
Is it a tessar? An heliar?? Is it any good?

The best to all of you!!

R

Dan Fromm
8-Jun-2023, 16:10
triplet.

Try it out.

arri
9-Jun-2023, 00:10
Can anyone chime in and talk a bit about this lens that easy given to me?
Is it a tessar? An heliar?? Is it any good?

The best to all of you!!

R

Are you sure that it is an Eurygon and not an Eurynar? I never saw an Eurygon in a shutter. I thought the shortest Eurygon were the 210mm f/4.5

The Eurygon is a three element softfocus lens, very soft at f/4.5

The Eurynar is a four element dialyt system, four single elements. It is a very sharp lens. I have some of this lenses in different focus lengths.
It were the first famous rodenstock lens, you can find it in the early lens catalouges from 1912 or so.

I have a 150mm f/3.5 Eurynar. Made in the 1920th. It has a special kind of softness at full open but is very sharp when stopped down.

Eurynar lenses were made in different speeds: f/6.8; f/ 5.4; f/4.5 and f/3.5

A few of the lenses were coated after WW II. This ones are very rare and a perfect choice.
I guess the lens were offered by Rodenstock until 1948.

ruilourosa
9-Jun-2023, 05:32
Yes i am sorry... Its and eurynar �� bad memory

Do you know what would be the coverage?

Thanks!!

R

arri
9-Jun-2023, 08:10
Yes i am sorry... Its and eurynar �� bad memory

Do you know what would be the coverage?

Thanks!!

R

Data out of the Rodenstock catalogue from 1912:
At f/31 it covers a 6x8 1/4" plate or 150x210mm makes an image circle of nearly 260mm or 10 1/4"

Vaidotas
9-Jun-2023, 09:04
Eurynar is trademark of Rodenstock and does not relate to specific lens configuration.
As arri mentioned there are dialytes but also double gauss (some with same speed and approx same coverage) and dagor type lenses.
Rodenstock Eurynar 210/4.5 double gauss is on my hands, nice performer.