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Sigma Wide Angle 24mm f/1.8 EX Aspherical DG DF Macro Autofocus Lens for Pentax AF USA
- Price: $549.00
- Free Shipping (USA)
- In Stock
- B&H # SI2418MPAF
- Mfr# 432109
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This 24mm lens has a fast f/1.8 maximum aperture with macro focusing capability (minimum focusing distance is 7.1" for a reproduction ratio of 1:2.7). The 9-bladed aperture diaphragm obtains beautiful, circular out of focus characteristics. It incorporates a floating focus system and uses two aspherical elements for minimized distortion, spherical aberration and astigmatism. The lens front does not rotate during focusing, thus allowing the use of a "perfect hood" and the easy polarizing filters. Optical construction was created to minimize light falloff (darkening of the image corners) at maximum aperture-a big benefit particularly for digital cameras. Materials used in this lens are lead and arsenic free ecological glass.
Go To
| Performance | |
|---|---|
| Focal Length | 24 mm |
| Aperture |
Maximum: f/1.8 Minimum: f/22 |
| Camera Mount Type | Pentax K |
| Format Compatibility |
35mm Film / Full-Frame Digital Sensor Pentax Digital (APS-C) |
| Angle of View | 84.1° |
| Minimum Focus Distance | 7.1" (18.03 cm) |
| Magnification | 0.37x |
| Maximum Reproduction Ratio | 1:2.7 |
| Groups/Elements | 9/10 |
| Diaphragm Blades | 9 |
| Features | |
|---|---|
| Image Stabilization | No |
| Autofocus | Yes |
| Tripod Collar | No |
| Physical | |
|---|---|
| Filter Thread | 77 mm |
| Dimensions (DxL) | Approx. 3.3 x 3.1" (8.38 x 7.87 cm) |
| Weight | 1.07 lb (485 g) |
Filters & Filter Kits
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- Price: $53.90
- Price: $119.95
Filter Holders
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- Price: $53.95
Hoods & Covers
- Price: $39.95
Cases & Wraps
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- Price: $11.99
Lens Mount Caps
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- Price: $3.95
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