Filter test kit.

In order to select the best filter, you’ll need to pinpoint the imaging problem you’re currently having. One tool that is designed to help you do this is a filter test kit. ⁣⁣
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By viewing the resulting image each bandpass filter provides, you can determine the best color for maximizing contrast and reducing interfering light. In addition to a bandpass filter, you also may need to reduce glare, remove saturation, balance color and more. Each of these problems can be solved using optical filters.