How do I choose between a longpass and a shortpass filter?
When it comes to optical filters , choosing the right one can significantly impact the quality and effectiveness of your application. Longpass and shortpass filters are two common types, each with distinct characteristics and applications. In this post, we’ll explore the differences between longpass and shortpass filters to help you make an informed decision for your specific needs. Understanding the Basics: Longpass Filters vs. Shortpass Filters Before diving into their applications, let’s clarify the fundamental difference between these two filter types: 1. Longpass Filters: Longpass filters allow longer wavelengths (lower frequencies) to pass through while blocking shorter wavelengths. They transmit light above a certain cutoff wavelength and attenuate light below that threshold. Longpass filters are often used when you want to isolate specific, longer wavelengths. 2. Shortpass Filters: In contrast, shortpass filters permit shorter wavelengths (...