Kei1309
I had read the DP thread and it was, in fact, the very first motivation for my initial question...
As in the second post (or other post too) the 18200 was describe as having a "superior optics" and the above statement was the opposite, I was curious to see on which base it was made...
Regarding Chinese web pages, I have to admit that I generally limit my research to English documents (automatic translation are usually from average to bad)...
But looking at the pictures, I tend to backup the 18200 superiority over the 1855