The Ultimate Guide to 2/3″ Lenses: Types, Applications, and Technical Insights
The 2/3″ lens format is a standard in the world of professional video and machine vision systems, offering versatility for a wide range of applications. From high-definition broadcasting to industrial inspection, these lenses cater to diverse needs with varying specifications and features. This guide aims to provide an in-depth understanding of 2/3″ lenses, comparing their types, applications, and technical specifications.
| Type of Lens | Focal Length | Zoom Ratio | Application |
|---|---|---|---|
| Fujifilm 2/3″ HD Select Series | 4.5-54mm | 12x | Broadcast, Cinematic Production |
| Canon 2/3″ UHD 4K EFP Lens | 6.5-88mm | 13.5x | Event Production, Live Streaming |
| C-Mount Fisheye Lens | 1.8mm | Fixed | Surveillance, Aerial Imaging |
| Bi-Telecentric Lens | 0.158x | Fixed | Machine Vision, Metrology |
| Iris Adjustable Bi-Telecentric | 0.3x | Fixed | Industrial Inspection |
Understanding the 2/3″ Lens Format
The 2/3″ lens format refers to lenses designed for sensors with a diagonal measurement of approximately 11mm. This format strikes a balance between image quality, size, and weight, making it popular in various fields such as broadcasting, industrial applications, and scientific research.
Key Features of 2/3″ Lenses
- Image Circle: The 2/3″ lenses have a specific image circle that allows them to cover the sensor area effectively without vignetting.
- Mount Type: Most 2/3″ lenses feature C-Mount or Bayonet mount types, ensuring compatibility with a variety of cameras.
- Resolution: Many of these lenses are designed to accommodate high-resolution sensors, making them suitable for UHD and 4K applications.
- Focal Length Variability: Available in both prime and zoom configurations, these lenses can cater to different framing needs.
Popular Applications of 2/3″ Lenses
2/3″ lenses find applications across several sectors, including:
- Broadcasting: Lenses like those from www.fujifilm.com are commonly used in television production, where high-quality optics are essential for capturing sharp images.
- Machine Vision: Companies such as www.thorlabs.com and vicoimaging.com offer lenses suitable for industrial automation, where precision and repeatability are critical.
- Scientific Research: In laboratories, 2/3″ lenses are employed for imaging applications that require detailed observation, often found on platforms like www.edmundoptics.com.
Types of 2/3″ Lenses
Each type of 2/3″ lens serves a unique purpose, catering to different user needs. Below are major categories of 2/3″ lenses:
1. HD Select Series Lenses
These lenses are specifically designed for high-definition applications. They provide excellent color reproduction and contrast, making them ideal for cinematic use.
2. Bi-Telecentric Lenses
Models like the ones from vicoimaging.com offer unique optical designs that minimize distortion and ensure consistent magnification across the field of view. These are crucial in machine vision applications where accuracy is paramount.
3. Fisheye Lenses
With a wide field of view, fisheye lenses are often used in surveillance and creative photography. They allow for capturing expansive scenes in a single shot, making them versatile for various settings.
4. Zoom Lenses
Zoom lenses, such as the offerings from www.bhphotovideo.com, allow users to adjust the focal length dynamically, making them suitable for events and situations where the subject distance may vary.
5. Iris Adjustable Lenses
These lenses provide the flexibility of adjusting the iris for varying light conditions, which is particularly useful in industrial inspection tasks where lighting can be inconsistent.
Technical Comparison of 2/3″ Lenses
| Lens Model | Focal Length | Max Aperture | Zoom Ratio | Resolution |
|---|---|---|---|---|
| Fujifilm ZA12x4.5BERM | 4.5-54mm | f/1.8 | 12x | HD (1920×1080) |
| Canon 2/3″ UHD 4K Portable EFP Lens | 6.5-88mm | f/2.0 | 13.5x | UHD (3840×2160) |
| 2/3″ C-Mount Fisheye Lens | 1.8mm | f/2.8 | Fixed | 5 MegaPixels |
| 0.158X Bi-Telecentric Lens | – | – | Fixed | Up to 5 MegaPixels |
| 0.3X Iris Adjustable Bi-Telecentric Lens | – | – | Fixed | Up to 5 MegaPixels |
Advantages of Using 2/3″ Lenses
- Versatility: They can be used in various settings, from high-end film production to everyday industrial applications.
- Quality: The optical design of 2/3″ lenses provides excellent image quality, which is critical for professional use.
- Compatibility: The wide range of mount types ensures that these lenses can be used with various camera systems.
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Conclusion
2/3″ lenses are essential tools in the fields of broadcasting, machine vision, and scientific research. Understanding the different types, their applications, and technical specifications will help you choose the right lens for your needs. Whether you’re shooting a high-definition film or inspecting industrial components, selecting the right 2/3″ lens can significantly impact the quality and effectiveness of your work.
FAQ
What is a 2/3″ lens?
A 2/3″ lens is designed for sensors with a diagonal measurement of approximately 11mm, commonly used in video production and machine vision.
What are the advantages of using 2/3″ lenses?
They offer versatility, high optical quality, and compatibility with various camera systems, making them suitable for a wide range of applications.
Where can I purchase 2/3″ lenses?
You can find a variety of 2/3″ lenses from retailers such as www.bhphotovideo.com, www.fujifilm.com, and www.edmundoptics.com.
What applications are 2/3″ lenses used for?
They are used in broadcasting, industrial inspection, scientific research, and surveillance.
What is the difference between prime and zoom 2/3″ lenses?
Prime lenses have a fixed focal length, while zoom lenses allow for variable focal lengths, providing more framing flexibility.
Are 2/3″ lenses suitable for 4K video?
Yes, many 2/3″ lenses are designed to support UHD and 4K video resolutions, providing high-quality optics for professional use.
What types of mounts are available for 2/3″ lenses?
Common mounts include C-Mount and Bayonet mounts, ensuring compatibility with various cameras.
How do bi-telecentric lenses differ from standard lenses?
Bi-telecentric lenses maintain consistent magnification and minimize distortion, making them ideal for precision machine vision applications.
Can I use a 2/3″ lens for photography?
While primarily designed for video applications, some 2/3″ lenses can be used for photography, particularly in specialized settings.
What factors should I consider when choosing a 2/3″ lens?
Consider the application, required focal length, aperture, and lens type (zoom vs. prime) to ensure the lens meets your specific needs.
