VIVITAR SERIES 1 135mm f/2.3 AUTO TELEPHOTO — Optical Cross-Section & Ray Tracing

Home / Lenses / Vivitar / VIVITAR SERIES 1 135mm f/2.3 AUTO TELEPHOTOVIVITAR SERIES 1 135mm f/2.3 AUTO TELEPHOTOGB 1,408,910↗ — Ellis I. Betensky
6 ELEMENTS / 6 GROUPS
f = 135.21 mm
f/2.3
2ω = 18.18°
FIXED REAR COMPENSATOR
Focus MechanismFront objective L1-L5 translates objectward while the weak negative L6 compensator remains fixed relative to the film plane.
Optical Elements (6 physical)ElementTypeGlass
L1Biconvex Positive (near plano-convex)S-BSM10 class (OHARA; patent 623/569)
L2Positive MeniscusN-BK7 (SCHOTT; BK7-class equivalent)
L3Biconcave NegativeSF6 class (SCHOTT legacy; patent 805/255)
L4Biconvex PositiveN-SF2 (SCHOTT; SF2-class equivalent)
L5Negative Meniscus (concave to object)N-SSK2 class (SCHOTT; patent 622/531)
L6Negative Meniscus (fixed compensator)LLF1 (SCHOTT)

Element	Type	Glass
L1	Biconvex Positive (near plano-convex)	S-BSM10 class (OHARA; patent 623/569)
L2	Positive Meniscus	N-BK7 (SCHOTT; BK7-class equivalent)
L3	Biconcave Negative	SF6 class (SCHOTT legacy; patent 805/255)
L4	Biconvex Positive	N-SF2 (SCHOTT; SF2-class equivalent)
L5	Negative Meniscus (concave to object)	N-SSK2 class (SCHOTT; patent 622/531)
L6	Negative Meniscus (fixed compensator)	LLF1 (SCHOTT)