| Lens Technology | Prime Lens | Zoom Lens |
|---|---|---|
| Max Format Dimensions | 35mm full-frame | |
| Focal Length in Millimeters | 50 millimeter (mm) | 70-210 mm |
| Image Stabilization Feature | No | No |
| Lens Mounts | Canon EF | Pentax KAF4 |
| Maximum Aperture (f-stop) | ||
|---|---|---|
| Minimum Aperture | ||
| Aperture Control Ring | No | No |
| Minimum Focusing Distance | 0.35 m (13.78 inches) | 0.95 meter (m) |
|---|---|---|
| Maximum zoom level | 0.21 times (e.g., 2x for 2 times) | 0.32 times (e.g., 2x for 2 times) |
| Number of Optical Elements | - | |
| Number of Optical Groups | - | |
| Special Optical Elements | - | Two anomalous dispersion elements and three ED elements, HD coating |
| Auto Focus | Yes | Yes |
|---|---|---|
| Internal focus motor | Stepper motor | |
| Permanent Manual Focus Capability | Yes | Yes |
| Focus Operation Method | Internal | Internal |
| Product Weight | 159 gram (g) | 819 gram (g) |
|---|---|---|
| Color Options | Black | - |
| Diameter | 69 mm (2.72 inches) | 79 millimeter (mm) |
|---|---|---|
| Length | 39 mm (1.54 inches) | 175 millimeter (mm) |
| Environmental Resistance | No | Yes |
| Filter Diameter | 49 millimeter (mm) | 67 millimeter (mm) |
| Hood | No | Yes |
| Power Zoom | No | No |
| Zoom Lock | No | No |
| Tripod Mount Tab | No | No |
| Material | - | Magnesium Alloy |
| Zoom mechanism | - | Rotary (extending length) |
| Release Date |
|---|
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