Comparison of Fujinon XF 27mm f/2.8 R WR and Pentax 40mm f/2.8 Limited HD DA [S]ave
| Attribute |  Pentax 40mm f/2.8 Limited HD DA × |  Fujinon XF 27mm f/2.8 R WR × |
|---|---|---|
| Filter Size (mm) | 49 | 39 |
| Notes | Available in black or silver; High-grade multi-layer HD (High Definition) coating; Rounder aperture blades should yield more pleasing bokeh. | For Fujifilm X-mount. Weather- and dust-resistant. |
| Closest Focus (m) | 0.4 | 0.34 |
| Magnification Ratio (x) | 0.13 | 0.1 |
| Type | Standard Prime | Wide Prime |
| Length (mm) | 15 | 23 |
| APS Equivalent | 61mm | 41mm |
| Diagonal Angle of View (degree) | 39.00 | 55.50 |
| Image Circle | APS-C | APS-C (Fujifilm X-mount) |
| Focal Length (mm) | 40.00 | 27.00 |
| Brand | Pentax | Fujinon |
| Name | Pentax 40mm f/2.8 Limited HD DA | Fujinon XF 27mm f/2.8 R WR |
| Weight (g) | 89 | 84 |
| Aperture (f) | 2.80 - 22.00 | 2.80 - 16.00 |
| Diaphragm Blades | 9 | 7 |
| Diaphragm Blades Type | rounded | rounded |
| Lens Construction | 5 elements in 4 groups | 7 elements in 5 groups, including 1 aspherical element |
| Diameter (mm) | 63 | 62 |
| Focus Details | "Quick Shift" AF/MF mechanism | AF via high-torque DC coreless motor |
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