I put up that camerapedia article.
🙂 There are many articles about the Shanghai 58-II, and there's one thread here about it. However, many of the more informative ones are in Chinese.
The Shanghai 58-II is not the best Leica copy, or Chinese camera around. The camera is not well constructed, and often a Zorki is more reliable. I've opened and repaired a few Shanghai-58-II, and they're really poorly made inside.
Their lenses, which do look like Elmar lenses, are TRIPLETS and not Tessar types. The average Industar will do better in many ways, but the Shanghai 50/3,5 triplet does have its charm.
The Seagull 205 (or its clone, the Phenix 205) is a better rangefinder. Far more reliable, and has a 1:1 viewfinder with a brilliant RF patch and accurate parallax corrected framelines.
Have you seen this?
http://www.zorkikat.com/celebrating-the-year-of-the-tiger-cameras-from-china-3/315/
I wrote the entry early this year.
I plan to write something about the Shanghai-58 II's anatomy, complete with dissection photos and repair. I haven't found anything written about this topic yet, in English or in Chinese. But I don't plan to write it in English!
😀