Lensfielders currently has one for sale for $1,100. It appears to be in excellent condition but is that a high price? I realize this is a highly regarded "(future) classic" lens, but it seems like a lot. Also, what is the real deal with the HM designation. Is it really "High Modulation" as people often say, or something else like "High Magnification" since is seems to otherwise be exclusively reserved for Makro Symmars?