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Feel the intensity, not your equipment. Maximum image quality. Minimum weight. The new ZEISS SFL, up to 30% less weight than comparable competitors.

Resources Portal - BirdForum Opus

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Resources
Welcome

Welcome to the resources section of Opus.

Dictionary

The Dictionary is divided into several sections:

Hopefully the contents of the topography page will help you learn the body parts and feather tracts of the bird population.


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