GB 673,358 A — Pierre Angénieux
| 6 ELEMENTS / 5 GROUPS |
| 35mm MARKETING / 35.372mm DESIGN |
| f/2.5 |
| 65° FULL FIELD |
| ALL-SPHERICAL |
NO_INTERNAL_RECONSTRUCTION — GB 673,358 A publishes one fixed infinity prescription and no moving-group or object-distance table. The 0.914m catalog value is representative Exakta production metadata only; no focus var is authored.
| Element | Type | Glass |
|---|---|---|
| L1 | Negative Meniscus | BACD4 (HOYA catalog equivalent to patent 615598 barium-crown coordinate; production supplier unspecified) |
| L2 | Biconvex Positive | E-BAF8 (Hikari catalog equivalent to patent 624468 barium-flint coordinate; production supplier unspecified) |
| L3 | Positive Meniscus | SSK2 (Sumita catalog equivalent to patent 623530 dense-crown coordinate; production supplier unspecified) |
| L4 | Biconcave Negative | F3 (Sumita catalog equivalent to patent 614370 flint coordinate; production supplier unspecified) |
| L5a | Negative Meniscus | F1 (Sumita catalog equivalent to patent 629353 flint coordinate; production supplier unspecified) |
| L5b | Biconvex Positive | K-SK18 (Sumita catalog equivalent to patent 639558 dense-crown coordinate; production supplier unspecified) |