NIKON AF FISHEYE-NIKKOR 16mm f/2.8D — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON AF FISHEYE-NIKKOR 16mm f/2.8DNIKON AF FISHEYE-NIKKOR 16mm f/2.8DUS 5,434,713 A↗ — Haruo Sato
8 ELEMENTS / 5 GROUPS
DESIGN EFL 15.66855 mm
f/2.9 MODEL / f/2.8 MARKETED
180° DIAGONAL FISHEYE
CRC FLOATING FOCUS TO 0.25 m
ALL-SPHERICAL
Focus MechanismCONSTRAINED_RECONSTRUCTION: fixed-stop CRC focus; G1 and G2 move objectward at X2/X1 = 0.6 to 0.25 m.
Optical Elements (8 physical)ElementTypeGlass
L1Negative Meniscus, convex to objectJ-LAK01 (Hikari catalog equivalent to patent 640600; production supplier unspecified)
L2Negative Meniscus, convex to object620601 — SK16/BSM16 crown class (vendor unassigned)
L31Biconvex Positive626357 — F1/TIM1 flint class (vendor unassigned)
L32Negative MeniscusJ-LASF017 (Hikari catalog equivalent to patent 797454; production supplier unspecified)
L41Biconcave Negative581408 — FL5/TIL25 flint class (vendor unassigned)
L42Biconvex PositiveJ-K3 (Hikari catalog equivalent to patent 518589; production supplier unspecified)
L51Biconvex PositiveJ-PKH1 (Hikari catalog equivalent to patent 519700; production supplier unspecified)
L52Negative Meniscus785261 — dense-flint class (nearest J-SFS3/S-TIH23)

Element	Type	Glass
L1	Negative Meniscus, convex to object	J-LAK01 (Hikari catalog equivalent to patent 640600; production supplier unspecified)
L2	Negative Meniscus, convex to object	620601 — SK16/BSM16 crown class (vendor unassigned)
L31	Biconvex Positive	626357 — F1/TIM1 flint class (vendor unassigned)
L32	Negative Meniscus	J-LASF017 (Hikari catalog equivalent to patent 797454; production supplier unspecified)
L41	Biconcave Negative	581408 — FL5/TIL25 flint class (vendor unassigned)
L42	Biconvex Positive	J-K3 (Hikari catalog equivalent to patent 518589; production supplier unspecified)
L51	Biconvex Positive	J-PKH1 (Hikari catalog equivalent to patent 519700; production supplier unspecified)
L52	Negative Meniscus	785261 — dense-flint class (nearest J-SFS3/S-TIH23)