Product Descriptions:
| Characteristics: | Black Soft filter |
| Function: | Soft effect |
| Step: | 1/8,1/4,1/2 |
| Mounting status: | unmounted |
| Transmittance(%) : | 74% – 87% |
| Surface Quality: | 60/40 scratch-dig |
| Color: | light grey |
| Shape： | Square |
| Chamfer： | Round |
| Dimension(mm): | 37*37mm or customized |
| Thickness(mm): | 0.7mm |
| Substrate: | High transmittance optical glass, K9, Quartz Glass |
| Remark: Support customized. | |
Why do action cameras require black soft filters?
The main function of the black softening filter for action cameras is to make the originally sharp and harsh images become softer and have a cinematic feel. At the same time, it softens the highlights, slightly smoothes the skin texture, and also takes into account outdoor protection.
Why does the black soft filter require AF coating?
“AF” is the abbreviation of “Anti-Fingerprint”. It is formed by a vacuum coating technology on the optical glass substrate, creating a layer of hydrophobic and oleophobic coating. Action camera users frequently operate devices in water sports, rainy, foggy and sweaty environments. Therefore, coating the sports camera with AF coating can prevent water droplets and oil stains from adhering to the lens surface, thus ensuring the clarity of the imaging picture. In addition, during use it is inevitable to touch it. AF can play the role of anti-fingerprint, and is easier to clean the remaining fingerprints. At the same time, it can increase the wear resistance and protect the lens function.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical vacuum technology that apply depositing nano-materials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift. The company have been focus on optical coating for more than 17 years ,and the company offer one-stop optical filters solution including Narrow Bandpass Filters, IR cut-off Filters, Longpass Filters, Shortpass Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.
Remark: Because the interference type filter varies its performance at different angles, the spectral parameters usually determine its appearance color; moreover, the pictures in this link may originate from various shooting angles, so the actual color should therefore rely on the final spectral parameters required as the standard.
