SONY E 50mm f/1.8 OSS — Optical Cross-Section & Ray Tracing

Home / Lenses / Sony / SONY E 50mm f/1.8 OSSSONY E 50mm f/1.8 OSSJP 2012-242690 A↗ — Toshihide Hayashi, Naoki Miyagawa
9 ELEMENTS / 8 GROUPS
50mm MARKETED / 51.30mm DESIGN
f/1.8 MARKETED / f/1.85 DESIGN
2ω = 30.86° (PATENT)
OPTICAL STEADYSHOT / INNER FOCUS
Focus MechanismPUBLISHED — L221 translates imageward by 4.803 mm from infinity to the patent 0.142× row; the normalized model conjugate is about 0.457 m. Sony's production 0.39 m / 0.16× endpoint is correlation metadata only and is not used to reconstruct additional travel.
Optical Elements (9 physical)ElementTypeGlass
L211Biconvex PositiveS-LAH55 (OHARA catalog equivalent; production supplier unspecified; patent class 835427)
L212Positive MeniscusTAFD35 (HOYA catalog equivalent; production supplier unspecified; patent class 911353)
L213Negative MeniscusH-ZF4A (CDGM catalog equivalent; production supplier unspecified; patent class 728283)
L214Biconcave NegativeNBFD15 (HOYA catalog equivalent; production supplier unspecified; patent class 806333)
L215Negative MeniscusJ-SF03 (HIKARI catalog equivalent; production supplier unspecified; patent class 847238)
L216Biconvex PositiveS-LAH55 (OHARA catalog equivalent; production supplier unspecified; patent class 835427)
L221Biconcave NegativeJ-SK16 (HIKARI catalog equivalent; production supplier unspecified; patent class 620603)
L231Biconvex PositiveTAC8 (HOYA catalog equivalent; production supplier unspecified; patent class 729547)
L232Negative MeniscusJ-SF6 (HIKARI catalog equivalent; production supplier unspecified; patent class 805255)

Element	Type	Glass
L211	Biconvex Positive	S-LAH55 (OHARA catalog equivalent; production supplier unspecified; patent class 835427)
L212	Positive Meniscus	TAFD35 (HOYA catalog equivalent; production supplier unspecified; patent class 911353)
L213	Negative Meniscus	H-ZF4A (CDGM catalog equivalent; production supplier unspecified; patent class 728283)
L214	Biconcave Negative	NBFD15 (HOYA catalog equivalent; production supplier unspecified; patent class 806333)
L215	Negative Meniscus	J-SF03 (HIKARI catalog equivalent; production supplier unspecified; patent class 847238)
L216	Biconvex Positive	S-LAH55 (OHARA catalog equivalent; production supplier unspecified; patent class 835427)
L221	Biconcave Negative	J-SK16 (HIKARI catalog equivalent; production supplier unspecified; patent class 620603)
L231	Biconvex Positive	TAC8 (HOYA catalog equivalent; production supplier unspecified; patent class 729547)
L232	Negative Meniscus	J-SF6 (HIKARI catalog equivalent; production supplier unspecified; patent class 805255)