Comparison of Canon EF 24-105mm ƒ/3.5-5.6 IS STM and Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR [S]ave
| Attribute |  Canon EF 24-105mm ƒ/3.5-5.6 IS STM × |  Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR × |
|---|---|---|
| Aperture (f) | 3.50 - 36.00 | 3.50 - 38.00 |
| Filter Size (mm) | 77 | 62 |
| Notes | Image Stabilization (4 stops) | WR (Weather Resistant); Included Accessories: Lens Hood PH-RBC62, Lens Cap O-LC62, Lens Mount Cap K. |
| Closest Focus (m) | 0.4 | 0.5 |
| Magnification Ratio (x) | 0.3 | 0.22 |
| Zoom System | Rotary | Rotary |
| Type | Standard Zoom | Standard Zoom |
| APS Equivalent | 38 - 168mm | 43 - 161mm |
| Diaphragm Blades | 7 | 9 |
| Image Circle | 35mm | 35mm |
| Focal Length (mm) | 24.00 - 105.00 | 28.00 - 105.00 |
| Brand | Canon | Pentax |
| Name | Canon EF 24-105mm ƒ/3.5-5.6 IS STM | Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR |
| Weight (g) | 525 | 463 |
| Diaphragm Blades Type | rounded | rounded |
| Lens Construction | 17 elements in 13 groups, including 2 aspherical and 1 UD element | 15 elements in 11 groups, including 1 ED (Extra-low Dispersion) element, 1 anomalous-dispersion glass element and 2 aspherical elements; HD coating |
| Diagonal Angle of View (degree) | 23.30 - 84.00 | 23.50 - 75.00 |
| Length (mm) | 104 | 86.5 |
| Diameter (mm) | 83.4 | 73 |
| Focus Details | Stepping motor (STM) for smooth, near silent AF when shooting stills and movies; full-time manual focus | DC Motor; Internal with "Quick Shift" AF/MF mechanism |
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