MidOpt® offer a series of optical filters that improve the quality of drone imaging. The filters are robustly designed to address multiple problems that can arise in imaging with aerial photography.
Color & Light Enhancement: Filters like Neutral Density (ND) filters help reduce color saturation in images and also help reduce the amount of light entering the lens, making them more visually appealing and easier to analyze. This is particularly useful in applications such as agricultural monitoring.
Reduced Distortions: Filters can help reduce distortions such as motion blur, chromatic aberration, blooming and lens flares, which can degrade image quality. By minimizing these distortions, optical filters contribute to producing more accurate and reliable data.
Glare Reduction and UV and IR Filtering: Filters can reduce glare and block ultraviolet (UV) and infrared (IR) light, which can interfere with image quality and analysis. UV and IR-Block filters help in producing more accurate color representation and preventing issues like color distortion.
Protective Windows are also ideal for use in Aerial imaging applications. They can be combined with a Bandpass filters to help protect the lens. Protective Windows are available in various substrates such as industrial glass, acrylic and sapphire, and are also available with A/R (anti-reflection) Oleophobic (anti-oil, water and smudge) coatings.
Environmental Adaptability: Some optical filters are designed to address imaging problems caused by the natural environment. For example, Neutral Density (ND) filters are used to control exposure levels in bright sunlight, while thermal imaging filters enable drones to capture thermal data for applications like search and rescue or building inspections.
Specialized Applications: Certain optical filters are designed for specialized applications, such as multispectral and hyperspectral imaging. These filters enable drones to capture data beyond the visible spectrum, allowing for applications in agriculture, environmental monitoring, and scientific research.
MidOpt® Filters for Drone Applications
Single Bandpass Filters
| Description: | Useful Range: | StablEDGE® | |
 | Bi650 Red Interference Bandpass Filter | 643-665nm | |
 | Bi725 Red Edge Bandpass Filter | 717-732nm | |
| Bi850 Near-IR Interference Bandpass Filter | 845-860nm |
Multi Bandpass Filters
| Description: | Useful Range: | StablEDGE®: | |
 | DB550/850 Dual Bandpass Green + 850nm NIR | 535-565nm, 830-870nm | |
 | TB475/550/850 Triple Bandpass Blue+Green+850nm NIR | 468-483nm, 543-558nm, 835-865nm | |
 | TB550/660/850 Triple Bandpass Green+Red+850nm NIR | 543-558nm, 653-668nm, 835-865nm |
Protective Windows
| Description: | Useful Range: | StablEDGE: | |
 | AC370 Acrylic Oleophobic A/R Protective Window | 380-850nm | √ |
| AC400 Acrylic Oleophobic-Coated UV-Block Protective Window | 415-1100nm | √ |
| LP286 Borofloat® Oleophobic A/R Coated Protective Window | 350-1100nm | √ |
| LP190 Sapphire Protective Window | 250-2300nm |
Neutral Density
| Description: | Useful Range: | Optical Density: | |
 | ND030 Neutral Density Filter - Absorptive 50% Transmission | 425-675nm | 0.3 |
 | ND060 Neutral Density Filter - Absorptive 25% Transmission | 425-675nm | 0.6 |
 | ND090 Neutral Density Filter - Absorptive 12.5% Transmission | 425-675nm | 0.9 |
 | ND120 Neutral Density Filter - Absorptive 6.25% Transmission | 425-675nm | 1.2 |
 | ND200 Neutral Density Filter - Absorptive 1.0% Transmission | 425-675nm | 2.0 |
 | ND300 Neutral Density Filter - Absorptive 0.1% Transmission | 425-675nm | 3.0 |
 | ND400 Neutral Density Filter - Absorptive 0.01% Transmission | 425-675nm | 4.0 |