NIKON AI NIKKOR 600mm f/5.6 IF-ED — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON AI NIKKOR 600mm f/5.6 IF-EDNIKON AI NIKKOR 600mm f/5.6 IF-EDJP1981-035116 — Soichi Nakamura, Kazuo Arashida
7 ELEMENTS / 6 GROUPS
600mm f/5.6
4°10′
INTERNAL FOCUS
5.5 m MFD
Focus MechanismCONSTRAINED_RECONSTRUCTION: functional G2 (L4–L6) translates imageward (rearward) 10.425804222 mm from infinity to the 5.5 m product endpoint. The patent's adjacent d6/d11 total is conserved exactly. Because the inferred aperture stop is fixed at the midpoint of d6, focus variation is stored on STO→S7 and S11→S12.
Optical Elements (7 physical)ElementTypeGlass
L1Biconvex PositiveJ-FKH1 catalog equivalent (patent 500819; production supplier unspecified)
L2Biconvex PositiveJ-FKH1 catalog equivalent (patent 500819; production supplier unspecified)
L3Biconcave NegativeH-LaF4 catalog equivalent (patent 750350; production supplier unspecified)
L4Positive MeniscusSF15 catalog equivalent (patent 699300; production supplier unspecified)
L5Biconcave NegativeH-K9L catalog equivalent (patent 517642; production supplier unspecified)
L6Biconcave NegativeK-LaK14 catalog equivalent (patent 697556; production supplier unspecified)
L7Positive MeniscusJ-PKH1 catalog equivalent (corrected patent nd≈1.52, vd=70.1; production supplier unspecified)

Element	Type	Glass
L1	Biconvex Positive	J-FKH1 catalog equivalent (patent 500819; production supplier unspecified)
L2	Biconvex Positive	J-FKH1 catalog equivalent (patent 500819; production supplier unspecified)
L3	Biconcave Negative	H-LaF4 catalog equivalent (patent 750350; production supplier unspecified)
L4	Positive Meniscus	SF15 catalog equivalent (patent 699300; production supplier unspecified)
L5	Biconcave Negative	H-K9L catalog equivalent (patent 517642; production supplier unspecified)
L6	Biconcave Negative	K-LaK14 catalog equivalent (patent 697556; production supplier unspecified)
L7	Positive Meniscus	J-PKH1 catalog equivalent (corrected patent nd≈1.52, vd=70.1; production supplier unspecified)