NOT THAT I AM PLANNING ON GETTING ONE... I noticed that there are M39 LTM and Kiev/Contax mount versions (the latter being a bit less expensive). I have a Helios 103 coming (Kiev/Contax mount) and I was thinking it would be handy to get a Jupiter 8 in the same mount. That way I buy one less adapter. Does anyone know if one is better (better being a subjective term) than the other? Best I can tell from searching is that the LTM versions have a better bokeh and the Jupiter 8M has one less element. Opinions vary greatly from there. I understand that QC isn't a strong suit of FSU lenses but there have to be SOME general trends. Also what's up with the Jupiter 8 with red aperture blades? Finally, any suggestions on a good Kiev/Contax mount? Rainbowimaging where I typically get my adapters says theres only focuses to infinity with lenses over 50mm. I have to admit these FSU lenses could get addicting. Thanks in advance.