MINOLTA MD ZOOM 35-135mm f/3.5-4.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / Minolta / MINOLTA MD ZOOM 35-135mm f/3.5-4.5MINOLTA MD ZOOM 35-135mm f/3.5-4.5US 5,249,079 A↗ — Hiromu Umeda
14 ELEMENTS / 12 GROUPS
35-135mm f/3.5-4.5
4-GROUP ZOOM
ALL-SPHERICAL
Focus MechanismNO_INTERNAL_RECONSTRUCTION — US 5,249,079 publishes zoom spacings only. The 1.5 m close-focus value is product metadata; no finite-focus or macro internal motion is synthesized in this model.
Optical Elements (14 physical)ElementTypeGlass
N1Negative Meniscus805254 — dense flint class
N2Biconvex Positive517642 — borosilicate crown class
N3Positive Meniscus772498 — lanthanum flint class (N-LAF34 / TAF1 catalog equivalent)
N4Negative Meniscus755516 — lanthanum crown class (S-YGH51 / TAC6 close equivalent, Δnd +0.0005, Δνd +0.75)
N5Biconcave Negative697565 — lanthanum-crown class (H-LaK12 catalog equivalent)
N6Positive Meniscus847238 — dense flint class
N7Biconcave Negative618634 — dense phosphate crown class
N8Biconvex Positive517642 — borosilicate crown class
N9Biconvex Positive541472 — light flint class
N10Biconcave Negative755275 — dense flint class
N11Positive Meniscus603380 — flint class
N12Biconcave NegativeUnmatched (807316 lanthanum dense flint; coordinate of discontinued Schott LaSF8, no public dispersion coefficients)
N13Positive Meniscus517642 — borosilicate crown class
N14Biconvex Positive517522 — crown-flint class

Element	Type	Glass
N1	Negative Meniscus	805254 — dense flint class
N2	Biconvex Positive	517642 — borosilicate crown class
N3	Positive Meniscus	772498 — lanthanum flint class (N-LAF34 / TAF1 catalog equivalent)
N4	Negative Meniscus	755516 — lanthanum crown class (S-YGH51 / TAC6 close equivalent, Δnd +0.0005, Δνd +0.75)
N5	Biconcave Negative	697565 — lanthanum-crown class (H-LaK12 catalog equivalent)
N6	Positive Meniscus	847238 — dense flint class
N7	Biconcave Negative	618634 — dense phosphate crown class
N8	Biconvex Positive	517642 — borosilicate crown class
N9	Biconvex Positive	541472 — light flint class
N10	Biconcave Negative	755275 — dense flint class
N11	Positive Meniscus	603380 — flint class
N12	Biconcave Negative	Unmatched (807316 lanthanum dense flint; coordinate of discontinued Schott LaSF8, no public dispersion coefficients)
N13	Positive Meniscus	517642 — borosilicate crown class
N14	Biconvex Positive	517522 — crown-flint class