MINOLTA MD ZOOM 50-135mm f/3.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / Minolta / MINOLTA MD ZOOM 50-135mm f/3.5MINOLTA MD ZOOM 50-135mm f/3.5US 4,192,577↗ — Shuji Ogino
12 ELEMENTS / 10 GROUPS
PATENT 51.5-131.5mm
PATENT F/3.6
2ω = 47°-18°
Focus MechanismFront-group (V1) focus is inferred, not patent-stated; no finite-focus spacings (NO_INTERNAL_RECONSTRUCTION).
Optical Elements (12 physical)ElementTypeGlass
G1Negative Meniscus805254 — dense-flint coordinate class (supplier/melt unresolved)
G2Positive Meniscus670571 — lanthanum-crown coordinate class (S-LAL52 catalog equivalent; supplier/melt unresolved)
G3Positive MeniscusUnmatched (678490 lanthanum flint; no public catalog glass at this coordinate)
G4Biconcave Negative697555 — lanthanum-crown coordinate class (J-LAK14 catalog equivalent; supplier/melt unresolved)
G5Biconcave NegativeUnmatched (658585 lanthanum crown; nearest LAK11 class at Δνd −1.2)
G6Positive Meniscus805254 — dense-flint coordinate class (supplier/melt unresolved)
G7Negative Meniscus670571 — lanthanum-crown coordinate class (S-LAL52 catalog equivalent; supplier/melt unresolved)
G8Biconvex PositiveUnmatched (621613 dense crown; no public catalog glass at this coordinate, nearest SK16 class at Δnd −0.0010, Δνd −1.0)
G9Biconvex Positive517640 — crown coordinate class (N-BK7 / BSC7 family; supplier/melt unresolved)
G10Biconcave NegativeUnmatched (807316 lanthanum dense flint; coordinate of discontinued Schott LaSF8, no public dispersion coefficients)
G11Biconvex PositiveUnmatched (621613 dense crown; no public catalog glass at this coordinate, nearest SK16 class at Δnd −0.0010, Δνd −1.0)
G12Negative Meniscus670472 — barium-flint coordinate class (BAF10 catalog equivalent; supplier/melt unresolved)

Element	Type	Glass
G1	Negative Meniscus	805254 — dense-flint coordinate class (supplier/melt unresolved)
G2	Positive Meniscus	670571 — lanthanum-crown coordinate class (S-LAL52 catalog equivalent; supplier/melt unresolved)
G3	Positive Meniscus	Unmatched (678490 lanthanum flint; no public catalog glass at this coordinate)
G4	Biconcave Negative	697555 — lanthanum-crown coordinate class (J-LAK14 catalog equivalent; supplier/melt unresolved)
G5	Biconcave Negative	Unmatched (658585 lanthanum crown; nearest LAK11 class at Δνd −1.2)
G6	Positive Meniscus	805254 — dense-flint coordinate class (supplier/melt unresolved)
G7	Negative Meniscus	670571 — lanthanum-crown coordinate class (S-LAL52 catalog equivalent; supplier/melt unresolved)
G8	Biconvex Positive	Unmatched (621613 dense crown; no public catalog glass at this coordinate, nearest SK16 class at Δnd −0.0010, Δνd −1.0)
G9	Biconvex Positive	517640 — crown coordinate class (N-BK7 / BSC7 family; supplier/melt unresolved)
G10	Biconcave Negative	Unmatched (807316 lanthanum dense flint; coordinate of discontinued Schott LaSF8, no public dispersion coefficients)
G11	Biconvex Positive	Unmatched (621613 dense crown; no public catalog glass at this coordinate, nearest SK16 class at Δnd −0.0010, Δνd −1.0)
G12	Negative Meniscus	670472 — barium-flint coordinate class (BAF10 catalog equivalent; supplier/melt unresolved)