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PC-SUPER-ANGULON-R 28 mm f/2.8
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Because of its enlarged image circle of 62 mm, this lens can be shifted from the optical axis by up to 11 mm. Its special mount permits rotation in 45° steps to permit perspective corrections in vertical and horizontal formats. In this specially designed lens mount the aperture is set in accordance with the classic working aperture method. A preset lever facilitates stopping down the aperture to the pre-selected value. A floating element ensures high imaging performance into the 30 cm (12 in) near-focusing range. This special lens is unsurpassed for architectural photography because it eliminates the converging lines of conventional lenses (left illustration). Shifting its optical axis permits a stepless perspective correction until a pleasant natural overall image is achieved. |
| Angle of view |
73°, 93° (diagonal, unshifted, maximum offset) |
| Optical design | Number of elements
/ groups: 12 / 10 Focal length: 29.2 mm Entrance pupil: 25.6 mm (related to the first lens surface in light direction) Focusing range: 0.3 m to Infinity |
| Distance setting | Scale: Combined
meter/feet-increments Smallest object field: 146 mm x 219 mm Highest reproduction ratio: 1:6 |
| Diaphragm | Setting / Type:
Diaphragm with clickstops (including half values), Manual diaphragm Smallest aperture: f/22 |
| Bayonet | LEICA R quick-change bayonet for LEICA R3 to LEICA R8 with mechanical exposure control and stop-down metering |
| Filter (type) | Internal thread
for screw-in type filters EW 67, unset glass filters 74 mm (for special wide-angle filter mount ing in lens hood, as well as special polarizing filter 67 EW ) |
| Lens hood | Separate, screw-in type, also serves as holder for special 67 EW filters |
| Dimensions and weight | Length: 84 mm Largest diameter: 75 mm Weight: approx. 600 g |