![Cage System Mounting Plates](https://productimages.edmundoptics.com/7717.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Fundamental for Basic Cage System Structure
- 50mm Diameter or 2" Square
- Anodized Aluminum Construction
![Cage System 4-Rod Insertion Plate](https://productimages.edmundoptics.com/5469.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Easily Add Optics to an Existing Cage System Without the Need for Disassembly
- Slides into Existing TECHSPEC® Cage System Using 38mm Bolt Circle
- Click Here to See How to Use the 4-Rod Insertion Plate
![Cage System Adapter Plate](https://productimages.edmundoptics.com/5674.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Interfaces Between TECHSPEC Optical Cage System and Other Cage Systems
- Adapts 30mm Rod Spacing to TECHSPEC Cage System’s 38mm Bolt Circle
- 32mm Inner Diameter
![Cage System Filter Holder Plates and Filter Holders](https://productimages.edmundoptics.com/5468.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Specialized Plates Designed to Hold and Position Optics
- Filter Holder Plate with Interchangeable Filter Holder
![Cage System Angle Adjustment Plates and Accessories](https://productimages.edmundoptics.com/5903.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Multiple Angular Positioning Options
- Fixed and Continuous Adjustment Plates Available
- Anodized Aluminum Construction
![Cage System Adjustable Plates](https://productimages.edmundoptics.com/6056.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Specialized Plates Designed to Hold and Position Optics
- Anodized Aluminum Construction with Stainless Steel Screws
- X-Y Micro Positioning Plate with RMS Mounting Thread
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