The Caltar 65mm f/4.5 II-N Lens is a professional wide angle lens for the 4x5 format, providing an angle of view on 4x5 which is similar to a 17mm lens in the 35mm format. The Grandagon-N series is an 8-element, highly-corrected optical formula known for great contrast and distortion correction.
The 105° angle of coverage permits a generous 10mm 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/16 and f/22 apertures.
For critical work with transparency film, it is strongly recommended to use the Rodenstock #17001 dedicated center filter.
| Optical Construction | 8 elements in 4 groups |
| Aperture Range | f/4.5-f/45 |
| Covering Power | 105° |
| Image Circle @ Infinity | 170mm diameter @ f/22 |
| Shutter | Copal #0 |
| Shutter Speed | 1-1/500 sec., T, B |
| Flange Attachment Size | 32.5mm dia. x 0.5mm (standard Copal #0 size) |
| Slip-on Cap Sizes | 60mm front |
| Filter Size | 58mm EW |
| Flange Focal Distance | 70mm |
| Overall Length | 2.5" (63.5mm) |
| Weight | 10.9 oz |