The Grandagon-N is available in two versions, and it was always widely used by many photographers for architectural, panoramic and landscape photography. The eight element lenses offer not only a large maximum iris aperture, but also an image angle of 105°, an even more uniform illumination and distortion values of less than 1 %. The six element lens (90 mm f/6.8) is the cost-effective alternative that also impresses by its compactness which even allows the insertion into the Focus-Mount helical focuser for the use with bellowsless panoramic or shift cameras.
The use of the almost neutral gray Rodenstock center filters is recommended for critical motifs to make best use of the image circle without irritating light fall-off to the image corners. Rodenstock center filters are concentric graduated neutral gray filters whose density decreases from the center up to the transparent rim. The fall in density compensates for practically all the light fall-off to the image edge from a working f-stop of 16. With the center filter, the exposure must be corrected by 1.5 or 2.5 stops.
The lens shown on pictures was manufactured between 1987 to 1989.
Find on this page the manufacture date of your Rodenstock lens
Rodenstock Grandagon-N lenses specs
| GRANDAGON-N | 65mm f/4.5 | 75mm f/4.5 | 90mm f/4.5 |
| Lens construction | 8 elements in 4 groups | 8 elements in 4 groups | 8 elements in 4 groups |
| Max. aperture | f/ 4.5 | f/ 4.5 | f/ 4.5 |
| Angle of view | 105º | 105º | 105º |
| Image circle | 170mm (f/ 16 to f/ 22) | 195mm (f/ 16 to f/ 22) | 236mm (f/ 16 to f/ 22) |
| Max. film size | 4 × 5˝ | 4 × 5˝ | 5 × 7˝ |
| Shutter size | Copal 0 | Copal 0 | Copal 1 |
| Shutter speeds | 1 to 1/500, T, B | 1 to 1/500, T, B | 1 to 1/400, T, B |
| Front filter size | 58mm | 67mm | 82mm |
| Center filter | E 58/77 | E 67/68 | E 88/112 |
| Exposure correction | +1.5 f-stops | +1.5 f-stops | +1.5 f-stops |
| GRANDAGON-N | 90mm f/6.8 | ||
| Lens construction | 6 elements in 4 groups | ||
| Max. aperture | f/ 6.8 | ||
| Angle of view | 102º | ||
| Image circle | 221mm (f/ 22 to f/ 32) | ||
| Max. film size | 4 × 5˝ | ||
| Shutter size | Copal 0 | ||
| Shutter speeds | 1 to 1/500, T, B | ||
| Front filter size | 67mm | ||
| Center filter | E 67/86 | ||
| Exposure correction | +1.5 f-stops |
