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Sigma 1.4x Dg Ex Apo For Pentax (824109) Lens Converter
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1.4X magnification, for: still photography, bayonet, autofocus, 3 groups / 5 elementsThe Sigma 1.4x DG EX APO Tele Converter (also known as a tele-extender) will multiply the focal lenght of the existing lens by 1.4x, and will cut back the amount of light by one f/stop. For example, using a 1.4x teleconverter with a 300mm lens will effectively increase the focal length to 420mm. A lens set to f/2.8 will now be f/4. See full product specifications |
| Product Specifications | |
| Product MPN | |
| MPN | 824109 |
| Key Features | |
| Magnification | 1.4x |
| Compatibility | Still Photography |
| Mount Type | Bayonet |
| Focus | Autofocus |
| Optical Construction | 3 Groups / 5 Elements |
| Physical Dimensions | |
| Diameter | 2.7 in. |
| Length | 0.75 in. |
| Weight | 5 oz. |
| Miscellaneous | |
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