What is the difference between Sinaron and Sironar lenses?

[Alexander Grillon]

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]

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]

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]

Micheal Briggs gives the answer here:

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

 

[Toto]

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]

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]

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]

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).