Rodenstock Rodagon 90mm 2,8

[Jani_from_Finland]

Is this a processing lens or what, cant find any info on this one. I know it might have been used in some pressmachine in municipial service. I heard it was mounted together on a four lens board of this 90mm, then a 150mm, a 240mm and finally a 360mm, all from same factory and of same age.
They dont have shutters or aperture, just a kind of fixed waterhouse aperture, all of same diameter.

It just says RODENSTOCK RODAGON 1:2.8 f=90mm and seems to be wideangle.

Can this lens be used for LF or darkroom enlarger or alike?

Sorry if wrong section, couldnt find a specific category as the optictheory thread forbid these kind.

 

[Brian Legge]

Sounds like a possibility.

http://www.apug.org/forums/forum43/29495-rodenstock-rodagon-90-2-8-any-idea-what.html

 

[JRminox]

The spec sheet (2 pages) I have from Rodenstock probably covers other another year because no lens has 90mm focal length although it list 11 lenses from 50mm to 360mm.
80mm is the closest to your lens. These lenses were special purpose lenses designed for graphic processes and scientific applications. They were apochromatic with 6 elements in 4 groups of the double-gauss variety in a nearly symmetrical arrangement. Each focal length was used for different negative sizes for instance the 50mm was for 24x36mm, the 80mm covered 80x80mm, the 360mm covered 240x300mm. All lenses were f:5.6 and offered their best resolution between f:8 and f:11
The mounts of the 50mm up to the 135mm were 39mm LTM screws. The lenses were corrected for finite object distances and had a 60 degrees field of view.
If you are interested in super resolution repro lenses look at eBay listing 171140313200

 

[JRminox]

The spec sheet (2 pages) I have from Rodenstock probably covers other another year because no lens has 90mm focal length although it list 11 lenses from 50mm to 360mm.
80mm is the closest to your lens. These lenses were special purpose lenses designed for graphic processes and scientific applications. They were apochromatic with 6 elements in 4 groups of the double-gauss variety in a nearly symmetrical arrangement. Each focal length was used for different negative sizes for instance the 50mm was for 24x36mm, the 80mm covered 80x80mm, the 360mm covered 240x300mm. All lenses were f:5.6 and offered their best resolution between f:8 and f:11
The mounts of the 50mm up to the 135mm were 39mm LTM screws. The lenses were corrected for finite object distances and had a 60 degrees field of view.
If you are interested in super resolution repro lenses look at eBay listing 171140313200