FUJIFILM FUJINON XF 14mm f/2.8 R — Optical Cross-Section & Ray Tracing

Home / Lenses / Fujifilm / FUJIFILM FUJINON XF 14mm f/2.8 RFUJIFILM FUJINON XF 14mm f/2.8 RUS 2015/0168694 A1↗, Example 1 — Takashi Suzuki, Kenichi Sato, Taiga Noda
10 ELEMENTS / 7 GROUPS
14 mm / 21 mm equivalent
F2.8 marketed / F2.88 modeled
90.8° marketed angle of view
2 ASPHERICAL + 3 ED ELEMENTS (marketed)
Focus MechanismCONSTRAINED_RECONSTRUCTION: only G3 moves 1.780420252 mm objectward from infinity to 0.18 m; D8 and BF vary with a fixed image plane. Close-focus spacings are code-solved, not patent-published.
Optical Elements (10 physical)ElementTypeGlass
L11Negative MeniscusS-BAL3 (OHARA equivalent; 571530 class)
L12Neg. Meniscus (2× Asph)S-BAL42 (OHARA equivalent; 583594 class)
L21Biconvex PositiveS-LAH58 (OHARA equivalent; 883408 class)
L22Biconcave NegativeS-FTM16 (OHARA equivalent; 593353 class)
L31Biconcave NegativeS-TIL2 (OHARA equivalent; 541472 class)
L32Positive MeniscusS-FPL51 (OHARA equivalent; 497816 class)
L33Biconvex PositiveS-FPM2 (OHARA equivalent; 595677 class)
L34Pos. Meniscus (2× Asph)S-BAL42 (OHARA equivalent; 583594 class)
L35Biconcave NegativeS-NBH52 (OHARA equivalent; 673382 class; NR)
L36Biconvex PositiveS-FPL51 (OHARA equivalent; 497816 class)

Element	Type	Glass
L11	Negative Meniscus	S-BAL3 (OHARA equivalent; 571530 class)
L12	Neg. Meniscus (2× Asph)	S-BAL42 (OHARA equivalent; 583594 class)
L21	Biconvex Positive	S-LAH58 (OHARA equivalent; 883408 class)
L22	Biconcave Negative	S-FTM16 (OHARA equivalent; 593353 class)
L31	Biconcave Negative	S-TIL2 (OHARA equivalent; 541472 class)
L32	Positive Meniscus	S-FPL51 (OHARA equivalent; 497816 class)
L33	Biconvex Positive	S-FPM2 (OHARA equivalent; 595677 class)
L34	Pos. Meniscus (2× Asph)	S-BAL42 (OHARA equivalent; 583594 class)
L35	Biconcave Negative	S-NBH52 (OHARA equivalent; 673382 class; NR)
L36	Biconvex Positive	S-FPL51 (OHARA equivalent; 497816 class)