I suspect it might have been discussed to death, but I was not able to find this information. Who manufactured(-s) Sears and Quantaray lenses?
I remember seeing somewhere that the Quantaray lenses are produced by Sigma. Is this true for all of them? BTW, is there any somewhat comprehensive web-site discussing "4th party" (i.e. non-Sigma/Tamron/Tokina/Vivitar) K-mount lenses? I remember reading some comparative information on lenses labeled as Samyang/Phoenix, but haven't seen much of information on anything else. Igor

