| Lens Technology | Zoom Lens | Zoom Lens |
|---|---|---|
| Max Format Dimensions | 35mm full-frame | |
| Focal Length in Millimeters | 75-300 mm | 70-210 mm |
| Image Stabilization Feature | No | No |
| Lens Mounts | Canon EF | Pentax KAF4 |
| Maximum Aperture (f-stop) | F4–5.6 | |
|---|---|---|
| Minimum Aperture | F32–45 | |
| Aperture Control Ring | No | No |
| Number of Optical Elements | ||
|---|---|---|
| Minimum Focusing Distance | 1.50 m (59.06 inches) | 0.95 meter (m) |
| Maximum zoom level | 0.25 times (e.g., 2x for 2 times) | 0.32 times (e.g., 2x for 2 times) |
| Number of Optical Groups | - | |
| Special Optical Elements | - | Two anomalous dispersion elements and three ED elements, HD coating |
| Auto Focus | Yes | Yes |
|---|---|---|
| Internal focus motor | Micromotor | |
| Permanent Manual Focus Capability | No | Yes |
| Focus Operation Method | Lens extension | Internal |
| Product Weight | 480 gram (g) | 819 gram (g) |
|---|---|---|
| Color Options | Black | - |
| Diameter | 71 mm (2.8 inches) | 79 millimeter (mm) |
|---|---|---|
| Length | 122 mm (4.8 inches) | 175 millimeter (mm) |
| Material | Plastic body, Metal mount | Magnesium Alloy |
| Environmental Resistance | No | Yes |
| Filter Diameter | 58 millimeter (mm) | 67 millimeter (mm) |
| Zoom mechanism | Rotary (extending length) | Rotary (extending length) |
| Power Zoom | No | No |
| Zoom Lock | No | No |
| Tripod Mount Tab | No | No |
| Hood | - | Yes |
| Release Date | - |
|---|
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