Is this Sinar lens in fact a Apo-Sironar-N?

[jah3]

I have one Sinar named lens, Sinaron S 72° 1:5,6 f=150mm MC with a serial of 11147XXX and i was thinking it was a Sironar-N, but then i read these in fact would be Apo-Sironar-N lenses.
It takes a 49mm filter and is quite small.
Made by Rodenstock Germany.
Can someone help me with this?

 

[Alan Gales]

Yes, you are correct, APO Sironar N.

http://photo.net/large-format-photography-forum/004am3

 

[jah3]

I found that post, but got a note from someone shooting LF that it would not be the APO version? IS there any other sources available? I have only found varoius forum postings with mostly "maybes".

 

[Oren Grad]

I have one Sinar named lens, Sinaron S 72° 1:5,6 f=150mm MC with a serial of 11147XXX and i was thinking it was a Sironar-N, but then i read these in fact would be Apo-Sironar-N lenses.

The Sironar-N and Apo-Sironar-N are optically the same lens, just the labeling is different. So functionally it makes no difference. Your serial number is from the early '90s, around the time when Rodenstock was transitioning from the "Sironar-N" labeling to the "Apo-Sironar-N" labeling.

 

[jah3]

I got answer from Rodenstock about this.
It reads as follows:

Hello ,
the sinaron s lenses is a Apo Sironar N type .

best regards

Dieter Wenzel
Manager Service Fotooptiken
Industrial Optics