F 17-28/3.5-4.5 Fish-Eye
General Description
The diagonal FOV of this lens varies between 180° (at 17 mm) and 90° (at 28 mm).;
| Product Information | |
|---|---|
| Exact Name | smc PENTAX-F FISH-EYE 1:3.5-4.5 17-28mm |
| Color | black |
| Year of Introduction | 1995 |
| Catalog Number | 27000 |
| Sold with Hood | — |
| Sold with Case | soft case: S80-80 |
Technical Specifications
| Optics | |
|---|---|
| Optical Formula | 9 elements in 7 groups |
| Aperture Range | f/3.5 (4.5) ~ f/22 (32) |
| Number of Aperture Blades | 6 |
| Minimum Focusing Distance | 0.45 m |
| Maximum Magnification | 0.07 X |
| Special Features | fish-eye lens |
| Mechanics | |
| Front-Filter Thread | no |
| Maximum Diameter | 65 mm |
| Length | 61 mm |
| Weight | 255 g |
| Accessories | |
| Cap | plastic slip-on cap, 51 mm |
| Fitting Hood(s) | not applicable |
| Fitting Case(s) | soft case: S80-80 |
