It is my first post so i would like to say hello to everyone of you

I am looking for info about Rodenstock Technika Sironar 150mm 5.6 lens - I could not find any on the internet. Is it any good, will it cover 6x17?
I have an opportunity to buy this in a good price I believe.

Click image for larger version.  Name: 143580060_442427183787457_958952402165868022_n.jpg  Views: 25  Size: 27.3 KB  ID: 211908
Click image for larger version.  Name: 143676035_703543526992898_3476292852358099168_n.jpg  Views: 27  Size: 37.0 KB  ID: 211909
Click image for larger version.  Name: 143792240_3617043568344808_8943081946388694587_n.jpg  Views: 27  Size: 32.8 KB  ID: 211910
Click image for larger version.  Name: 143908614_2501536206814889_8471696413350420420_n.jpg  Views: 24  Size: 28.4 KB  ID: 211911