| Brand | Coatings | Product line | Model | Aperture (ƒ) | Focal range (mm) | Optical Design (Elements / Groups) | Mount | Image Size | Filter size(s) | Serial # | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Schneider-Kreuznach | C | Retina-Longar-Xenon | f:4/80mm | ƒ4 | 80 | 6 / 4 | Retina Xenon C | 35mm | 5564631 | Exchangable front-element for Retina camera. The camera has 3 glass elements in two groups. Focusing and aperture are a feature of the camera. | |
| Schneider-Kreuznach | C | Retina-Xenon | f:2.0/50mm | ƒ2 | 50 | 3 / 2 | Retina Xenon C | 35mm | 4762022 | Came with Retina IIIc | |
| Count: 2 |
