Comparison of Nikon 28-105mm f/3.5-4.5D AF Nikkor and Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR [S]ave
| Attribute |  Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR × |  Nikon 28-105mm f/3.5-4.5D AF Nikkor × |
|---|---|---|
| Magnification Ratio (x) | 0.22 | 0.5 |
| Filter Size (mm) | 62 | 62 |
| Front Element Rotation | - | - |
| Closest Focus (m) | 0.5 | 0.22 |
| Notes | WR (Weather Resistant); Included Accessories: Lens Hood PH-RBC62, Lens Cap O-LC62, Lens Mount Cap K. | - |
| Type | Standard Zoom | Standard Zoom |
| APS Equivalent | 43 - 161mm | 42 - 158mm |
| Zoom System | Rotary | Rotary |
| Image Circle | 35mm | 35mm |
| Focal Length (mm) | 28.00 - 105.00 | 28.00 - 105.00 |
| Brand | Pentax | Nikon |
| Name | Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR | Nikon 28-105mm f/3.5-4.5D AF Nikkor |
| Weight (g) | 463 | 454 |
| Aperture (f) | 3.50 - 38.00 | 3.50 - 22.00 |
| Diaphragm Blades | 9 | 9 |
| Diagonal Angle of View (degree) | 23.50 - 75.00 | 23.30 - 74.30 |
| Lens Construction | 15 elements in 11 groups, including 1 ED (Extra-low Dispersion) element, 1 anomalous-dispersion glass element and 2 aspherical elements; HD coating | 16 elements in 13 groups, including 1 aspheric element |
| Diameter (mm) | 73 | 71 |
| Length (mm) | 86.5 | 81 |
| Diaphragm Blades Type | rounded | - |
| Focus Details | DC Motor; Internal with "Quick Shift" AF/MF mechanism | Internal |
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