US 8,416,506 B2 — Example 6
| 70-200 mm f/2.8 FX telephoto zoom |
| Patent design: f = 71.40-196.00 mm, FNO = 2.89 |
| 21 elements / 16 groups; 7 ED elements |
| G3 internal focus; G5b vibration reduction |
| Nikon F mount / 135 full-frame |
Internal focusing by imageward translation of G3. Close-focus spacing is a paraxial reconstruction constrained by Nikon's published 1.4 m minimum focus distance.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | J-LAFH3 (HIKARI; 795287, coefficients unavailable) |
| L12 | Biconvex Positive | J-FKH1 (HIKARI) |
| L13 | Biconvex Positive | J-FKH1 (HIKARI) |
| L14 | Positive Meniscus | J-FKH1 (HIKARI) |
| L21 | Negative Meniscus | S-LAH59 (OHARA) |
| L22 | Biconcave Negative | N-FK5 (Schott) / J-FK5 class |
| L23 | Positive Meniscus | S-TIH53 (OHARA) |
| L24 | Positive Meniscus | S-TIH6 (OHARA) |
| L25 | Negative Meniscus | S-LAH59 (OHARA) |
| L31 | Positive Meniscus | S-LAM2 (OHARA) |
| L32 | Negative Meniscus | S-TIH53 (OHARA) |
| L33 | Biconvex Positive | S-PHM53 (OHARA) |
| L41 | Negative Meniscus | S-TIH53 (OHARA) |
| L51 | Biconvex Positive | J-FKH1 (HIKARI) |
| L52 | Positive Meniscus | J-FKH1 (HIKARI) |
| L53 | Biconvex Positive | S-TIH10 (OHARA) |
| L54 | Biconcave Negative | H-BaF3 (CDGM) / N-BALF4 class |
| L55 | Negative Meniscus | S-LAH63 (OHARA) |
| L56 | Biconvex Positive | J-FKH1 (HIKARI) |
| L57 | Biconvex Positive | J-FKH1 (HIKARI) |
| L58 | Negative Meniscus | J-LASF021 / S-LAH71 class |
Detailed analysis available in the interactive viewer above.