Delivering excellent imaging quality at an accessible price, it's the first zoom for the Alpha range offering a wide F2.8 aperture over its entire zoom range.

提供价位适中优秀的成像质量，这是第变焦的阿尔法提供超过其整个变焦范围内广泛象素光圈范围。

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The beam is then shaped to fill the entire 20.3 cm diameter output aperture of the Schmidt-Cassegrain telescope.

梁再来填充整个20.3厘米直径输出孔径施密特·格伦千里镜地外形。

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This high performance, interchangeable zoom lens features an F2.8 maximum aperture throughout its entire 15-45mm zoom range and is designed for exclusive use with the PENTAX Q-Mount line of digital cameras.

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Thanks to a larger aperture, floating the entire camera assembly to reduce vibrations, and I suspect a huge amount of software development, the Lumia 920 boasts low light handling abilities closer to that of an SLR than a phone camera.

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