


( Brand: Edmund Optics ), ( Manufacturer Part Number: 65-994 )
The Edmund Optics 65-994 25mm to 40mm Flat Field Uncoated Hybrid Aspheric Lens is a versatile and high-quality optical component designed for various applications in the field of optics and photonics.
This Hybrid Aspheric lens features a unique design that combines the advantages of both aspheric and spherical surfaces. The aspheric surface provides excellent correction for spherical aberrations, while the spherical surface ensures a high level of consistency in the lens's performance. The uncoated surface ensures that the lens has a high transmission rate, making it ideal for applications where light loss is a concern.
The lens has a focal length range of 25mm to 40mm, making it a great choice for applications that require a wide range of magnifications. The lens's flange focal length is 65mm, which means it can be used with a variety of camera systems and other optical devices.
The Edmund Optics 65-994 25mm to 40mm Flat Field Uncoated Hybrid Aspheric Lens is made of high-quality optical glass, ensuring excellent optical performance and durability. It has a wide acceptance angle of 40 degrees, which means it can capture a large field of view. The lens is also designed to have a low distortion, ensuring that images are accurate and free of distortions.
In summary, the Edmund Optics 65-994 25mm to 40mm Flat Field Uncoated Hybrid Aspheric Lens is a versatile and high-quality optical component that is ideal for a wide range of applications in the field of optics and photonics. Its unique design, high transmission rate, wide acceptance angle, and low distortion make it an excellent choice for anyone in need of a high-performance lens with a wide focal length range.
Pros of buying Edmund Optics 65-994 25mm 40mm FL Uncoated Hybrid Aspheric Lens:1. High-quality optics: The lens is made with high-quality materials and features an aspheric design, which provides excellent image quality and reduces aberrations.
2. Wide field of view: With a focal length range of 25mm to 40mm, this lens offers a wide field of view, making it ideal for various applications such as microscopy, imaging, and machine vision.
3. Affordable price: Compared to other lenses with similar specifications, the Edmund Optics 65-994 is relatively affordable, making it an attractive option for budget-conscious buyers.
4. Uncoated: The lens is uncoated, which can make it more susceptible to glare and reflections in certain lighting conditions. However, this can also be an advantage in some applications, such as when using the lens for UV or IR imaging.
Cons of buying Edmund Optics 65-994 25mm 40mm FL Uncoated Hybrid Aspheric Lens:1. Lack of coatings: The uncoated lens can be more susceptible to glare and reflections in certain lighting conditions, which may impact image quality.
2. Lack of autofocus: The lens does not have an autofocus mechanism, which may require manual focusing in some applications.
3. Limited aperture: The lens has a maximum aperture of f/3.6, which may limit the amount of light that can be captured in low-light conditions.
Conclusion:The Edmund Optics 65-994 25mm 40mm FL Uncoated Hybrid Aspheric Lens is a high-quality, affordable option for those in need of a wide-angle lens for various applications. While it may not have the same level of coatings as some other lenses, its aspheric design and wide field of view make it an excellent choice for many users. However, those requiring autofocus or a wider aperture may want to consider other options.
Recommendation:If you are in need of a wide-angle lens for microscopy, imaging, or machine vision applications and are looking for a budget-friendly option, the Edmund Optics 65-994 25mm 40mm FL Uncoated Hybrid Aspheric Lens is a great choice. Its high-quality optics and wide field of view make it an excellent tool for many applications. Just be aware of its limitations, such as the lack of coatings and autofocus, and consider whether they will impact your specific use case.
Edmund Optics #65-994 - 25mm Dia. One was opened to take the pictures. X 40mm FL, Uncoated, Hybrid Asphere, New, unopened packaging. I have three, this is for one.