A Beautiful Diagonal to enhance the performance of Virtually any telescope the William Optics 2" Quartz Dielectric Diagonal is a great after market accessory. The William Optics includes:
- Dielectric coatings yielding 99% reflectivity.
- An internal quartz mirror that is polished to a higher accuracy and provides an absolutely minimal expansion rate when compared to traditional mirror diagonals.
- Precision design that will enhance reflectivity and contrast.
As with all William Optics products the fit and finish of this 2" Quartz Dielectric Diagonal is beautiful. Included in the package is a 2" to 1.25" Adapter and over-sized thumb screws for easy adjustment. Weighing in at 470 grams this diagonal won't weigh your telescope down.