What is the difference between Sinaron and Sironar lenses?

Alexander Grillon · Feb 27, 2006

What is the difference between Sinaron and Sironar lenses?
I am a Schneider user and I have the feeling that Rodenstocks' will be my next choice...
Thank you
A Grillon

Daniel Grenier · Feb 27, 2006

Alexander Grillon said:
What is the difference between Sinaron and Sironar lenses?

Pretty much no difference from what I understand. Sironar are generic Rodenstock lenses and Sinaron lenses were made for Sinar (Sinar-on.... get it ?).

Steve Hamley · Feb 27, 2006

The Sinar-branded lenses were individually tested by Sinar, just as Linhof individually tested Linhof-branded lenses.

Rodenstock made the Sironar (70 degrees), the Apo Sironar (IIRC this was later rebranded the Apo Sironar-W, 80 degree coverage). Of the Apo Sironars, there were the W, the N, and the S. The N has 72 degrees coverage and the S has 75 degrees.

The Sinar Sinaron is a Apo Sironar-N IIRC, 72 degree coverage.

Bob Salomon could answer with 100% certainty.

Steve

Struan Gray · Feb 27, 2006

Micheal Briggs gives the answer here:

http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=004am3

Toto · Feb 27, 2006

here I send you something that Lee L explained in another topic:

Typically the -on ending means the lens is in the family of 6 element double Gauss lenses, and the -ar is in a family of 4 element lenses that don't typically perform as well as the double Gauss types, especially at larger apertures. So the -on lenses are often have 50% more elements and are more highly corrected. There is obviously a price difference, and some manufacturers (e.g. Nikon) don't adopt this naming scheme.

Lee

df cardwell · Feb 27, 2006

Toto said:
here I send you something that Lee L explained in another topic:

Typically the -on ending means the lens is in the family of 6 element double Gauss lenses, and the -ar is in a family of 4 element lenses that don't typically perform as well as the double Gauss types, especially at larger apertures. So the -on lenses are often have 50% more elements and are more highly corrected. There is obviously a price difference, and some manufacturers (e.g. Nikon) don't adopt this naming scheme.

Lee

To say the least, it is a gross misunderstanding to say a Tessar does not perform as well as a Plasmat.

.

Donsta · Feb 27, 2006

I can't say I understand that theoretical naming convention - Rodenstock Sironar lenses are not 4 element lenses. Also, the Sinar Sinaron series lenses are exactly the same (in a lot of cases) Sironar lenses. Rodenstock Grandagon series lenses have either 8 or 6 elements; not 50% more than the Sironar series lenses which have six elements. Schneider's Super Symmar series have 6 elements?...

MattKing · Feb 27, 2006

Toto said:
here I send you something that Lee L explained in another topic:

Typically the -on ending means the lens is in the family of 6 element double Gauss lenses, and the -ar is in a family of 4 element lenses that don't typically perform as well as the double Gauss types, especially at larger apertures. So the -on lenses are often have 50% more elements and are more highly corrected. There is obviously a price difference, and some manufacturers (e.g. Nikon) don't adopt this naming scheme.

Lee

I believe that this is reflected in the naming conventions for some enlarger lenses (Componon vs. Componar), but not always (Rodagon vs. Ysaron).

What is the difference between Sinaron and Sironar lenses?

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