Baader Planetarium T-2 Star Diagonal

Prism diagonals, like this Baader model, are generally more robust and easier to keep clean than mirror diagonals. Because they use a solid block of glass, they are less prone to surface degradation over time and offer excellent light transmission when paired with high-quality coatings like those found here.

Yes, but you will need to purchase the appropriate T-2 eyepiece holder adapter separately. The diagonal itself features T-2 threads on both ends, which allows for a highly modular setup but requires specific adapters to connect standard visual accessories.

The 34mm clear aperture is designed to prevent vignetting with standard 1.25-inch eyepieces. It ensures that the full light cone from your telescope reaches your eye without being clipped, maintaining a bright and unobstructed field of view.

Absolutely. The T-2 threading system is a standard in the industry, making it an excellent choice for building custom imaging trains. You can securely connect cameras, binoviewers, and other accessories directly to the diagonal, ensuring a rigid and precise connection.

This range indicates that the diagonal is optimized for a very broad spectrum of light, extending well beyond the visible range into the near-infrared. This ensures that the coatings maintain high transmission efficiency across all colors, resulting in crisp, color-accurate views without unwanted tinting.