"I Love Film" thanks for this interesting link. This is an informative site!
You know Rangefinderforum has always encouraged the free dissemination of information and photo samples of quality lenses of general interest without being held to any standard of artistic pretense - this is something I like about RFF. Thanks again to "I Love Film" for the enjoyable link and please, please don't be discouraged by the frankly rather shocking negativity on display here.
just for your information: *.blogspot.com are among the sites which are not accessible from mainland china (filtered by the "great firewall").