| Diagonal size: | 50.8mm (2") | 
			
				| Diagonal type: | Mirror | 
			
				| Glass material: | BK7 | 
			
				| Coatings: | Dielectric, 58 layers | 
			
				| Reflectivity: | Over 99% | 
			
				| Optical quality: | Diffraction limited | 
			
				| Eyepiece holder: | 2", Twist-Lock | 
			
				| 2"-to-1.25" Stepdown adapter: | Included, Twist-Lock | 
			
				| Compression ring: | Yes, dual rings for 2" eyepiece holder and single ring for 1.25" stepdown adapter | 
			
				| Housing construction: | Machined aluminum black anodized | 
			
				| Barrels: | Comes with 2" barrel (for connection to 2" focusers) and SCT adapter (for connection to SCTs) | 
			
				| Barrel interior: | Glare threaded and painted flat black | 
			
				| Threads for filters: | 2" barrel and 1.25" stepdown adapter have 2" filter threads | 
			
				| Dimensions: | 152.4mm x 76.2mm x 101.6mm (6" x 3" x 4") | 
			
				| Weight: | 19 oz (538.6 g) (with stepdown adapter) |