The field depth is an important criterion for making the judgement of photograph quality.

景深对判断照片品质是一个很重要的标准。

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It solves not only environmental pollution but also the depth and the quality of the permeated layer which is approved by experts in the field.

该工艺不仅解决了环境污染问题，而且解决了渗层深度和渗层质量问题，得到同行业专家的认可。

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Especially when used with large aperture lenses, the EOS 6D camera's full-frame sensor offers a tremendous degree of creative control over depth-of-field, helping users to achieve pro-quality cinematic effects in Full HD video recordings.

ENGADGET: Canon unveils EOS 6D DSLR: full frame sensor and WiFi for $2,099 in December

The much larger sensor and superior processing gives you massively better image quality, they're much faster (with little or no lag) so better for action, there's a lot more creative control over things like depth of field, the option to change lenses, add flashguns etc add to creative possibilities and also increase image quality.

BBC: Tips for picking the right camera