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What is the differnce Rodenstock lenses

Hi,
what is the difference between a rodenstock lens with a coloured ring at the lens Barrel (like green, silver, ...) and a lensbarrel with no ring.

For example:
a) Rodenstock Sironar N 180mm /5.6 with no ring
b) Rodenstock Sironar N 180mm /5.6 with a silver ring

Are there any technical differences? Quality? Age? Better or worse one of them? A "NoGO" for digital...

Thank you.
mueller
 

Leigh

New member
The colored rings are a marketing gimmick.
Rodenstock added them after Schneider started using them.

AFAIK, there is no difference in vintages of Rodenstock lenses.
The re-designs changed the lens series name, e.g. going from Apo-Sironar-N to Apo-Sironar-S.

- Leigh
 
Last edited:

alajuela

Active member
The colored rings are a marketing gimmick.
Rodenstock added them after Schneider started using them.

AFAIK, there is no difference in vintages of Rodenstock lenses.
The re-designs changed the lens series name, e.g. going from Sironar-N to Sironar-S.

- Leigh
Not exactly - the coating changed from the N - S -- The S has better contrast.

Phil;)
 

Leigh

New member
The -N and -S are different designs.
For example...
the IC for the Apo-Sironar N 210/5.6 is 301mm, while
the IC for the Apo-Sironar S 210/5.6 is 316mm.

I'm sure each lens used the best coatings available at the time of manufacture, but I doubt that's the reason for changing the letter.

My poorly-phrased point about vintages is that I'm unaware of major changes occurring that were not accompanied by a name change.

- Leigh
 
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