US 4,699,475 — Seventh Embodiment / Table 7
| 16 elements / 12 groups |
| 35–105 mm |
| f/3.5–4.5 |
| 52 mm filter |
| all spherical |
Production lens focuses by moving G1; US 4,699,475 Table 7 publishes infinity zoom spacings only, so close-focus optical spacing is not modeled.
| Element | Type | Glass |
|---|---|---|
| L1 | Negative Meniscus | S-TIH6 (OHARA; 805/254 dense flint) |
| L2 | Biconvex Positive | S-BSM14 (OHARA; 603/607 barium crown) |
| L3 | Positive Meniscus | S-BSM14 (OHARA; 603/607 barium crown) |
| L4 | Negative Meniscus | J-LASF017 class (795/454; patent rounded 796/455) |
| L5 | Positive Meniscus | S-TIH6 (OHARA; 805/254 dense flint) |
| L6 | Negative Meniscus | J-LASF017 class (795/454; patent rounded 796/455) |
| L7 | Biconcave Negative | S-LAL8 (OHARA; 713/539 lanthanum crown) |
| L8 | Biconvex Positive | Unmatched (796/409 lanthanum flint; no current public catalog match verified) |
| L9 | Biconvex Positive | S-LAL8 (OHARA; 713/539 lanthanum crown) |
| L10 | Negative Meniscus | S-TIH6 (OHARA; 805/254 dense flint) |
| L11 | Positive Meniscus | N-BAK4 / S-BAL14 class (569/560 barium crown; patent rounded 568/560) |
| L12 | Positive Meniscus | BACD11 / N-SK11 / S-BAL41 class (564/608 barium crown) |
| L13 | Negative Meniscus | J-LASF017 class (795/454; patent rounded 796/455) |
| L14 | Biconvex Positive | Unmatched (518/603 light crown; legacy crown code not catalog-resolved) |
| L15 | Positive Meniscus | BACD11 / N-SK11 / S-BAL41 class (564/608 barium crown) |
| L16 | Negative Meniscus | Unmatched (796/409 lanthanum flint; no current public catalog match verified) |
Detailed analysis available in the interactive viewer above.