Thank you very much Marc. Rollei and CZ had an agreement on lens multicoating, but the initial reason was that Rollei wanted something to indicate the CZ lenses for the Rollei SL 35 with multicoating process received this process because CZ did not still engrave them with the "T*" and then Rollei asked CZ to engrave them "HFT" as I commented previously. This is the explanation from Carl Zeiss in 2001 about CZ and Rollei relationship on the lens multicoating processes, the final paragraph could be applied for the HFT and T* multicoating processes from the beginning : "The Planar®, Distagon®, Sonnar® lenses that Rollei produces under license from Carl Zeiss are all HFT coated by Rollei. All the lenses that Carl Zeiss produces for Rollei at the Zeiss Oberkochen plant are actually Zeiss T*. coated. However, the designation on these lenses is ”HFT” in the interest of remaining fully consistent throughout the Rollei product range". Camera Lens News 13: http://www.zeiss.de/c12567a8003b58b9/Contents-Frame/12617449bd5b809ac1256a1400496fd3 Carlos 2010/8/10 Marc James Small <marcsmall@xxxxxxxxxxx>: > Carlos, I stand corrected. > > Carl Zeiss pamphlet 10-029 d-e-f CM-TS-VIII/86 Roo (1986), "World Famous > Zeiss Lenses for World Famous Cameras" leaves no question that lenses for > Rollei cameras were manufactured at Oberkochen but marked with HFT. Why > Zeiss did this for Rollei when it refused to do the same for other customers > is a bit confusing. > > But, in any event, you were correct. > > Marc > > > msmall@xxxxxxxxxxxx > Cha robh bàs fir gun ghràs fir! > > --- > Rollei List > > - Post to rollei_list@xxxxxxxxxxxxx > > - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the > subject field OR by logging into www.freelists.org > > - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the > subject field OR by logging into www.freelists.org > > - Online, searchable archives are available at > //www.freelists.org/archives/rollei_list > > --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list