AGFA SOLAGON 50mm f/2 — Optical Cross-Section & Ray Tracing

Home / Lenses / Agfa / AGFA SOLAGON 50mm f/2AGFA SOLAGON 50mm f/2US 2,745,315↗ — Theodor Brendel
6 ELEMENTS / 4 GROUPS
f ≈ 50.08 mm
F/2
2ω ≈ 46.7°
ALL-SPHERICAL
Focus MechanismUnit focus; final back-focus gap varies from infinity to a representative 0.914 m (3 ft) close-focus setting; this finite state is not patent-published.
Optical Elements (6 physical)ElementTypeGlass
L1Positive MeniscusN-SK15 / SK15 class (Schott; patent 623/581)
L2Plano-Convex PositiveS-BAH11 (Ohara) / BaF11 cross-reference class (patent 667/484)
L3Plano-Concave NegativeF7 (HOYA catalog equivalent; production supplier unspecified; patent 625356)
L4Concave-Plano NegativeF7 (HOYA catalog equivalent; production supplier unspecified; patent 625356)
L5Plano-Convex PositiveS-BAH11 (Ohara) / BaF11 cross-reference class (patent 667/484)
L6Biconvex PositiveN-SK15 / SK15 class (Schott; patent 623/581)

Element	Type	Glass
L1	Positive Meniscus	N-SK15 / SK15 class (Schott; patent 623/581)
L2	Plano-Convex Positive	S-BAH11 (Ohara) / BaF11 cross-reference class (patent 667/484)
L3	Plano-Concave Negative	F7 (HOYA catalog equivalent; production supplier unspecified; patent 625356)
L4	Concave-Plano Negative	F7 (HOYA catalog equivalent; production supplier unspecified; patent 625356)
L5	Plano-Convex Positive	S-BAH11 (Ohara) / BaF11 cross-reference class (patent 667/484)
L6	Biconvex Positive	N-SK15 / SK15 class (Schott; patent 623/581)