PENTAX 110 24mm f/2.8 — Optical Cross-Section & Ray Tracing

Home / Lenses / Pentax / PENTAX 110 24mm f/2.8PENTAX 110 24mm f/2.8US 4,223,982 Example 2 — Asahi Kogaku / Sugiyama
6 ELEMENTS / 5 GROUPS
f ≈ 24.0 mm
F/2.8
2ω ≈ 48°
ALL SPHERICAL
Focus MechanismUnit focus (entire optical assembly translates). Body-mounted aperture/shutter.
Optical Elements (6)ElementTypeGlass
L1Negative MeniscusS-TIH10 (OHARA)
L2Biconvex PositiveS-LAH53 (Ohara) / NBFD3 (Hoya)
L3Biconcave NegativeSK5 (Schott) / BACD5 (Hoya)
L4Biconcave NegativeS-TIH14 (OHARA) / FD140-N-SF14 class (762265)
L5Biconvex PositiveN-LAF34 (Schott) / TAF1 (Hoya)
L6Positive MeniscusS-LAH53 (Ohara) / NBFD3 (Hoya)
AnalysisDetailed analysis available in the interactive viewer above.

Element	Type	Glass
L1	Negative Meniscus	S-TIH10 (OHARA)
L2	Biconvex Positive	S-LAH53 (Ohara) / NBFD3 (Hoya)
L3	Biconcave Negative	SK5 (Schott) / BACD5 (Hoya)
L4	Biconcave Negative	S-TIH14 (OHARA) / FD140-N-SF14 class (762265)
L5	Biconvex Positive	N-LAF34 (Schott) / TAF1 (Hoya)
L6	Positive Meniscus	S-LAH53 (Ohara) / NBFD3 (Hoya)