P. ANGÉNIEUX RETROFOCUS TYPE R11 28mm f/3.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / P. Angénieux / P. ANGÉNIEUX RETROFOCUS TYPE R11 28mm f/3.5P. ANGÉNIEUX RETROFOCUS TYPE R11 28mm f/3.5GB 720,808↗ — Pierre Angénieux
6 ELEMENTS / 6 GROUPS
28.000 mm DESIGN EFL
f/3.5
75° PUBLISHED FIELD
ALL-SPHERICAL
Focus MechanismNO_INTERNAL_RECONSTRUCTION — infinity prescription only; no focus motion is modeled.
Optical Elements (6 physical)ElementTypeGlass
L1Positive MeniscusSF5 (Schott catalog equivalent to patent 675323 dense-flint coordinate; production supplier unspecified)
L1′Negative MeniscusJ-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)
L2Biconvex PositiveJ-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)
L3Positive MeniscusJ-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)
L4Biconcave NegativeF1 (Sumita catalog equivalent to patent 629353 flint coordinate; production supplier unspecified)
L5Biconvex PositiveJ-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)

Element	Type	Glass
L1	Positive Meniscus	SF5 (Schott catalog equivalent to patent 675323 dense-flint coordinate; production supplier unspecified)
L1′	Negative Meniscus	J-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)
L2	Biconvex Positive	J-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)
L3	Positive Meniscus	J-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)
L4	Biconcave Negative	F1 (Sumita catalog equivalent to patent 629353 flint coordinate; production supplier unspecified)
L5	Biconvex Positive	J-SK16 (Hikari catalog equivalent to patent 620602; production supplier unspecified)