Nikon EL-Nikkor 105/5.6 [V1]
First generation asymmetric Gauss enlarger lens marked “Nippon Kogaku Japan”. Black metal body; silver mount. Single-coated.
| Dimensions | 105 mm |
|---|---|
| Focal Length (mm) | 105 |
| Max Aperture (f) | 5.6 |
| Min Aperture (f) | 45 |
| Aperture Type | Straight 8 |
| Elements | 6 / 4 |
| Rear Mount | M39 |
| Production | 1966-1971 |
| Serial Numbers | 309406, 327000 |
16:9 –
Version 1 and Version 2 of Nikkor 105/5.6 are optically identical and appear only to be differentiated by the maker’s branding: in 1971 Nippon Kogaku contracted to Nikon.