The Rodenstock 90mm f/6.8 Grandagon-N Lens is a professional wide angle lens for the 4x5 or 5x7 formats, providing an angle of view on 4x5 which is similar to a 24mm lens in the 35mm format. The Grandagon-N series is an 8-element, highly-corrected optical formula known for great contrast and distortion correction. This is a perfect lens for capturing interior spaces, buildings, landscapes, etc.
The 102° angle of coverage permits a generous 39mm of all-direction shift on the 4x5 format, particularly beneficial when capturing a building from ground level. This lens is recommended for use between f/22 and f/32 apertures.
For critical work with transparency film, it is strongly recommended to use the Rodenstock #17002 dedicated center filter.
| Focal Length | 90 mm |
| Aperture Range | f/6.8 - 45 |
| Covering Power | 102° |
| Optical Configuration | Groups: 4 Elements: 6 |
| Flange Focal Distance | 94 mm |
| Flange Thread | 32.5 mm x 0.5 |
| Image Circle | 221 mm @ f/22 |
| Shutter | Copal #0 |
| Shutter Speeds | 1 / 500 to 1 second B, T |
| Slip-On Cap Size | Front: 70 mm |
| Filter Thread | Front: 67 mm |
| Overall Length | 3.09" (78.5 mm) |
| Dimensions (DxL) | Not Specified By Manufacturer |
| Weight | 16.23 oz (460 g) |