' s ▁Fair ▁in ▁ 1 9 3 7 . ▁ ▁The ▁first ▁Rolle if lex ▁to ▁offer ▁a ▁Schne ider ▁Kreuz nach ▁X en ar ▁taking ▁l ens ▁as ▁an ▁option , ▁in ▁addition ▁to ▁the ▁Carl ▁Ze iss ▁T ess ar . ▁ ▁Rolle if lex ▁ 2 . 8 A ▁In cor por ated ▁the ▁first ▁ 8   cm ▁f 2 . 8 ▁taking ▁l ens ▁( e ither ▁an ▁ 8 0   mm ▁Carl ▁Ze iss ▁T ess ar ▁or ▁O pton ▁T ess ar ) ▁into ▁the ▁Rolle if lex ▁line . ▁It ▁also ▁added ▁an ▁X ▁flash ▁syn ch ▁contact . ▁Bu ilt ▁from ▁ 1 9 4 9 ▁to ▁ 1 9 5 1 . ▁ ▁Rolle if lex ▁ 2 . 8 E ▁ ▁Re leased ▁in ▁October ▁ 1 9 5 6 , ▁this ▁was ▁the ▁first ▁model ▁with ▁a ▁built ▁in , ▁un cou ple d ▁light ▁meter ▁as ▁an ▁option . ▁ ▁Tele ▁Rolle if lex ▁This ▁camera ▁used ▁a ▁ 1 3 5   mm / f 4 . 0 ▁Carl ▁Ze iss ▁S onn ar ▁taking ▁l ens . ▁The ▁introduction ▁to ▁a ▁ 1 9 9 0 ▁sale ▁catalog ue ▁by ▁S othe by ' s ▁au ction ▁house ▁in ▁London ▁estimated ▁that ▁approximately ▁ 1 2 0 0 ▁cam eras ▁existed ▁at ▁that ▁date . ▁ ▁The ▁new ▁Tele ▁Rolle if lex ▁uses ▁ 1 3 5 mm / f 4 ▁Schne ider ▁Tele - X