PANASONIC LEICA DG NOCTICRON 42.5mm f/1.2 ASPH POWER O.I.S.

US 2015/0192839 A1 Example 5 — Panasonic / Miyazaki

14 elements / 11 groups
f = 41.6508 mm patent; 42.5 mm marketed
F1.2 marketed; F1.284 patent
2ω = 29.4° patent; 29° marketed
2 aspherical surfaces
Internal focus + Power O.I.S.

Focus Mechanism

Internal focus by L9/G2 only; L9 moves 4.9449 mm toward the image side between infinity and 0.5 m.

Optical Elements (14)

ElementTypeGlass
L1Biconvex PositiveUHR lanthanum flint, TAFD40 / H-ZLaF90A / J-LASFH17 class
L2Positive MeniscusTAFD35 / H-ZLaF4LA / K-LaSFn23 class
L3Negative MeniscusS-TIH1 / E-FD1 / H-ZF3 class
L4Biconcave NegativeS-TIH13 / E-FD13 class
L5Biconvex PositiveS-LAL18 / TAC8 / H-LaK52 class
L6Biconcave NegativeS-NBH53(V) / J-KZFH9 class
L7Biconvex PositiveTAFD35 / H-ZLaF4LA / K-LaSFn23 class
L8Biconvex Positive (1× Asph)Moldable lanthanum, M-TAF / K-LaFK50 equivalent class
L9Negative MeniscusN-SF2 / E-FD2 / H-ZF1 class
L10Positive Meniscus (ED)S-FPL51 / FCD1 / N-PK52A / D-FK61A class
L11Positive Meniscus (1× Asph, O.I.S.)Moldable lanthanum, M-TAF / K-LaFK50 equivalent class
L12Negative MeniscusLF5 / E-FL5 / QF50 class
L13Biconvex PositiveTAFD35 / H-ZLaF4LA / K-LaSFn23 class
L14Biconcave NegativeN-KZFS8 / S-NBH8 class

Analysis

Detailed analysis available in the interactive viewer above.